Simplify (2x -4z)2 – (2x +4z)2 and find its value for x = -2 and z = 3
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Answer:
Let's simplify step-by-step.
(2x−4z)(2)−(2x+4z)(2)
Distribute:
=(2x)(2)+(−4z)(2)+−4x+−8z
=4x+−8z+−4x+−8z
Combine Like Terms:
=4x+−8z+−4x+−8z
=(4x+−4x)+(−8z+−8z)
=−16z
Answer:
=−16z
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