expand the following using suitable identities (2x-y+z)²
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Step-by-step explanation:
4xsquareplus y square plus z square -4xy-2yz+4zx
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Answer:
2x² + y² + z² - 4xy - 2yz + 4xz
Step-by-step explanation:
(2x - y + z)²
By 3rd identity :-
(a + b + c)² = a² + b² + C² +2ab + 2bc + 2ac
(2x - y + z)² = (2x)² + (-y²) + (z)² + 2(2x) (-y) + 2(-y) (z) + 2(2x)(z)
= 2x² + y² + z² - 4xy - 2yz + 4xz
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