Algebra Examples

Multiply (3x-4)^2
(3x-4)2(3x4)2
Step 1
Rewrite (3x-4)2 as (3x-4)(3x-4).
(3x-4)(3x-4)
Step 2
Expand (3x-4)(3x-4) using the FOIL Method.
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Step 2.1
Apply the distributive property.
3x(3x-4)-4(3x-4)
Step 2.2
Apply the distributive property.
3x(3x)+3x-4-4(3x-4)
Step 2.3
Apply the distributive property.
3x(3x)+3x-4-4(3x)-4-4
3x(3x)+3x-4-4(3x)-4-4
Step 3
Simplify and combine like terms.
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Step 3.1
Simplify each term.
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Step 3.1.1
Rewrite using the commutative property of multiplication.
33xx+3x-4-4(3x)-4-4
Step 3.1.2
Multiply x by x by adding the exponents.
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Step 3.1.2.1
Move x.
33(xx)+3x-4-4(3x)-4-4
Step 3.1.2.2
Multiply x by x.
33x2+3x-4-4(3x)-4-4
33x2+3x-4-4(3x)-4-4
Step 3.1.3
Multiply 3 by 3.
9x2+3x-4-4(3x)-4-4
Step 3.1.4
Multiply -4 by 3.
9x2-12x-4(3x)-4-4
Step 3.1.5
Multiply 3 by -4.
9x2-12x-12x-4-4
Step 3.1.6
Multiply -4 by -4.
9x2-12x-12x+16
9x2-12x-12x+16
Step 3.2
Subtract 12x from -12x.
9x2-24x+16
9x2-24x+16
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