Multiply (2-3z)(2+3z)

Math
(2-3z)(2+3z)
Expand (2-3z)(2+3z) using the FOIL Method.
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Apply the distributive property.
2(2+3z)-3z(2+3z)
Apply the distributive property.
2⋅2+2(3z)-3z(2+3z)
Apply the distributive property.
2⋅2+2(3z)-3z⋅2-3z(3z)
2⋅2+2(3z)-3z⋅2-3z(3z)
Simplify and combine like terms.
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Simplify each term.
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Multiply 2 by 2.
4+2(3z)-3z⋅2-3z(3z)
Multiply 3 by 2.
4+6z-3z⋅2-3z(3z)
Multiply 2 by -3.
4+6z-6z-3z(3z)
Multiply z by z.
4+6z-6z-3⋅3z2
Multiply -3 by 3.
4+6z-6z-9z2
4+6z-6z-9z2
Subtract 6z from 6z.
4+0-9z2
Add 4 and 0.
4-9z2
4-9z2
Multiply (2-3z)(2+3z)

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