Precalculus Examples

Solve the Function Operation (fog)(0) , f(x)=x^3+2x^3+5x , g(x)=-4x^2-3x+7
, ,
Step 1
Set up the composite result function.
Step 2
Evaluate by substituting in the value of into .
Step 3
Simplify each term.
Tap for more steps...
Step 3.1
Use the Multinomial Theorem.
Step 3.2
Simplify each term.
Tap for more steps...
Step 3.2.1
Apply the product rule to .
Step 3.2.2
Raise to the power of .
Step 3.2.3
Multiply the exponents in .
Tap for more steps...
Step 3.2.3.1
Apply the power rule and multiply exponents, .
Step 3.2.3.2
Multiply by .
Step 3.2.4
Rewrite using the commutative property of multiplication.
Step 3.2.5
Multiply by .
Step 3.2.6
Apply the product rule to .
Step 3.2.7
Raise to the power of .
Step 3.2.8
Multiply the exponents in .
Tap for more steps...
Step 3.2.8.1
Apply the power rule and multiply exponents, .
Step 3.2.8.2
Multiply by .
Step 3.2.9
Multiply by by adding the exponents.
Tap for more steps...
Step 3.2.9.1
Move .
Step 3.2.9.2
Multiply by .
Tap for more steps...
Step 3.2.9.2.1
Raise to the power of .
Step 3.2.9.2.2
Use the power rule to combine exponents.
Step 3.2.9.3
Add and .
Step 3.2.10
Multiply by .
Step 3.2.11
Multiply by .
Step 3.2.12
Apply the product rule to .
Step 3.2.13
Rewrite using the commutative property of multiplication.
Step 3.2.14
Multiply by by adding the exponents.
Tap for more steps...
Step 3.2.14.1
Move .
Step 3.2.14.2
Use the power rule to combine exponents.
Step 3.2.14.3
Add and .
Step 3.2.15
Raise to the power of .
Step 3.2.16
Multiply by .
Step 3.2.17
Apply the product rule to .
Step 3.2.18
Raise to the power of .
Step 3.2.19
Apply the product rule to .
Step 3.2.20
Raise to the power of .
Step 3.2.21
Multiply the exponents in .
Tap for more steps...
Step 3.2.21.1
Apply the power rule and multiply exponents, .
Step 3.2.21.2
Multiply by .
Step 3.2.22
Multiply by .
Step 3.2.23
Multiply by .
Step 3.2.24
Multiply by by adding the exponents.
Tap for more steps...
Step 3.2.24.1
Move .
Step 3.2.24.2
Multiply by .
Tap for more steps...
Step 3.2.24.2.1
Raise to the power of .
Step 3.2.24.2.2
Use the power rule to combine exponents.
Step 3.2.24.3
Add and .
Step 3.2.25
Multiply by .
Step 3.2.26
Multiply by .
Step 3.2.27
Multiply by .
Step 3.2.28
Apply the product rule to .
Step 3.2.29
Raise to the power of .
Step 3.2.30
Multiply by .
Step 3.2.31
Multiply by .
Step 3.2.32
Multiply by .
Step 3.2.33
Raise to the power of .
Step 3.2.34
Multiply by .
Step 3.2.35
Multiply by .
Step 3.2.36
Raise to the power of .
Step 3.2.37
Multiply by .
Step 3.2.38
Raise to the power of .
Step 3.3
Add and .
Step 3.4
Add and .
Step 3.5
Subtract from .
Step 3.6
Use the Multinomial Theorem.
Step 3.7
Simplify each term.
Tap for more steps...
Step 3.7.1
Apply the product rule to .
Step 3.7.2
Raise to the power of .
Step 3.7.3
Multiply the exponents in .
Tap for more steps...
Step 3.7.3.1
Apply the power rule and multiply exponents, .
Step 3.7.3.2
Multiply by .
Step 3.7.4
Rewrite using the commutative property of multiplication.
Step 3.7.5
Multiply by .
Step 3.7.6
Apply the product rule to .
Step 3.7.7
Raise to the power of .
Step 3.7.8
Multiply the exponents in .
Tap for more steps...
Step 3.7.8.1
Apply the power rule and multiply exponents, .
Step 3.7.8.2
Multiply by .
Step 3.7.9
Multiply by by adding the exponents.
Tap for more steps...
Step 3.7.9.1
Move .
Step 3.7.9.2
Multiply by .
Tap for more steps...
Step 3.7.9.2.1
Raise to the power of .
Step 3.7.9.2.2
Use the power rule to combine exponents.
Step 3.7.9.3
Add and .
Step 3.7.10
Multiply by .
Step 3.7.11
Multiply by .
Step 3.7.12
Apply the product rule to .
Step 3.7.13
Rewrite using the commutative property of multiplication.
Step 3.7.14
Multiply by by adding the exponents.
Tap for more steps...
Step 3.7.14.1
Move .
Step 3.7.14.2
Use the power rule to combine exponents.
Step 3.7.14.3
Add and .
Step 3.7.15
Raise to the power of .
Step 3.7.16
Multiply by .
Step 3.7.17
Apply the product rule to .
Step 3.7.18
Raise to the power of .
Step 3.7.19
Apply the product rule to .
Step 3.7.20
Raise to the power of .
Step 3.7.21
Multiply the exponents in .
Tap for more steps...
Step 3.7.21.1
Apply the power rule and multiply exponents, .
Step 3.7.21.2
Multiply by .
Step 3.7.22
Multiply by .
Step 3.7.23
Multiply by .
Step 3.7.24
Multiply by by adding the exponents.
Tap for more steps...
Step 3.7.24.1
Move .
Step 3.7.24.2
Multiply by .
Tap for more steps...
Step 3.7.24.2.1
Raise to the power of .
Step 3.7.24.2.2
Use the power rule to combine exponents.
Step 3.7.24.3
Add and .
Step 3.7.25
Multiply by .
Step 3.7.26
Multiply by .
Step 3.7.27
Multiply by .
Step 3.7.28
Apply the product rule to .
Step 3.7.29
Raise to the power of .
Step 3.7.30
Multiply by .
Step 3.7.31
Multiply by .
Step 3.7.32
Multiply by .
Step 3.7.33
Raise to the power of .
Step 3.7.34
Multiply by .
Step 3.7.35
Multiply by .
Step 3.7.36
Raise to the power of .
Step 3.7.37
Multiply by .
Step 3.7.38
Raise to the power of .
Step 3.8
Add and .
Step 3.9
Add and .
Step 3.10
Subtract from .
Step 3.11
Apply the distributive property.
Step 3.12
Simplify.
Tap for more steps...
Step 3.12.1
Multiply by .
Step 3.12.2
Multiply by .
Step 3.12.3
Multiply by .
Step 3.12.4
Multiply by .
Step 3.12.5
Multiply by .
Step 3.12.6
Multiply by .
Step 3.12.7
Multiply by .
Step 3.13
Apply the distributive property.
Step 3.14
Simplify.
Tap for more steps...
Step 3.14.1
Multiply by .
Step 3.14.2
Multiply by .
Step 3.14.3
Multiply by .
Step 4
Simplify by adding terms.
Tap for more steps...
Step 4.1
Subtract from .
Step 4.2
Subtract from .
Step 4.3
Add and .
Step 4.4
Add and .
Step 4.5
Subtract from .
Step 4.6
Subtract from .
Step 4.7
Subtract from .
Step 4.8
Subtract from .
Step 4.9
Simplify by adding numbers.
Tap for more steps...
Step 4.9.1
Add and .
Step 4.9.2
Add and .
Step 5
Evaluate the result function by replacing with in the function.
Step 6
Simplify the evaluated function.
Tap for more steps...
Step 6.1
Simplify each term.
Tap for more steps...
Step 6.1.1
Raising to any positive power yields .
Step 6.1.2
Multiply by .
Step 6.1.3
Raising to any positive power yields .
Step 6.1.4
Multiply by .
Step 6.1.5
Raising to any positive power yields .
Step 6.1.6
Multiply by .
Step 6.1.7
Raising to any positive power yields .
Step 6.1.8
Multiply by .
Step 6.1.9
Raising to any positive power yields .
Step 6.1.10
Multiply by .
Step 6.1.11
Multiply by .
Step 6.2
Simplify by adding numbers.
Tap for more steps...
Step 6.2.1
Add and .
Step 6.2.2
Add and .
Step 6.2.3
Add and .
Step 6.2.4
Add and .
Step 6.2.5
Add and .
Step 6.2.6
Add and .