6. Simplify the following using identities: a. (5x + 4y – 2z)2 b. (8a – 4b)
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Answer:
A. 2(5x+4y-2z)
10x+8y-4x
It can't be solved by any identity.
B. (8a-4b)²
A square-2ab+ B square
(8a)²-2× 8a× 4b+ (4b)²
64a²- 64ab+ 16b²
Hope it helps you.
Please mark my answer as BRAINLIEST.
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