Multiply or find the special product. (Simplify your answer completely.) [ (x - 8y) + z][ (x - 8y) - z]

Question

Susie Q

Mathematics

14 March, 13:08

Multiply or find the special product. (Simplify your answer completely.) [ (x - 8y) + z][ (x - 8y) - z]

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Byron · Answer 1

[ (x - 8y) + z] * [ (x - 8y) - z]

= (x - 8y) ² - z²

[ Following the rule: a² - b² = (a + b) (a - b) where 'a' here is (x - 8y) and 'b' is z ]

= x² - 16xy + 64y² - z²

= x² + 64y² - z² - 16xy