expand by using suitable identities (a) (4x-y+2z)^2 (b) (2a-4b)^3
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Step-by-step explanation:
(a) (4x-y+2z)²
(4x-y+2z)²=16x²+y²+4z²-8xy-4yz+16xz
(b)(2a-4b)³
(2a-4b)³=8a³-64b³-24ab(2a-4b)
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