Precalculus Examples

Simplify (e^x+e^(-x))(e^x-e^(-x))-(e^x-e^(-x))^2
Step 1
Simplify each term.
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Step 1.1
Expand using the FOIL Method.
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Step 1.1.1
Apply the distributive property.
Step 1.1.2
Apply the distributive property.
Step 1.1.3
Apply the distributive property.
Step 1.2
Combine the opposite terms in .
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Step 1.2.1
Reorder the factors in the terms and .
Step 1.2.2
Add and .
Step 1.2.3
Add and .
Step 1.3
Simplify each term.
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Step 1.3.1
Multiply by by adding the exponents.
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Step 1.3.1.1
Use the power rule to combine exponents.
Step 1.3.1.2
Add and .
Step 1.3.2
Rewrite using the commutative property of multiplication.
Step 1.3.3
Multiply by by adding the exponents.
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Step 1.3.3.1
Move .
Step 1.3.3.2
Use the power rule to combine exponents.
Step 1.3.3.3
Subtract from .
Step 1.4
Rewrite as .
Step 1.5
Expand using the FOIL Method.
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Step 1.5.1
Apply the distributive property.
Step 1.5.2
Apply the distributive property.
Step 1.5.3
Apply the distributive property.
Step 1.6
Simplify and combine like terms.
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Step 1.6.1
Simplify each term.
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Step 1.6.1.1
Multiply by by adding the exponents.
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Step 1.6.1.1.1
Use the power rule to combine exponents.
Step 1.6.1.1.2
Add and .
Step 1.6.1.2
Rewrite using the commutative property of multiplication.
Step 1.6.1.3
Multiply by by adding the exponents.
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Step 1.6.1.3.1
Move .
Step 1.6.1.3.2
Use the power rule to combine exponents.
Step 1.6.1.3.3
Add and .
Step 1.6.1.4
Simplify .
Step 1.6.1.5
Multiply by by adding the exponents.
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Step 1.6.1.5.1
Move .
Step 1.6.1.5.2
Use the power rule to combine exponents.
Step 1.6.1.5.3
Subtract from .
Step 1.6.1.6
Simplify .
Step 1.6.1.7
Rewrite using the commutative property of multiplication.
Step 1.6.1.8
Multiply by by adding the exponents.
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Step 1.6.1.8.1
Move .
Step 1.6.1.8.2
Use the power rule to combine exponents.
Step 1.6.1.8.3
Subtract from .
Step 1.6.1.9
Multiply by .
Step 1.6.1.10
Multiply by .
Step 1.6.2
Subtract from .
Step 1.7
Apply the distributive property.
Step 1.8
Multiply by .
Step 2
Simplify by adding terms.
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Step 2.1
Combine the opposite terms in .
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Step 2.1.1
Subtract from .
Step 2.1.2
Subtract from .
Step 2.2
Subtract from .