Question

Expand (-2x+3y-2z)^2

Answer 1

Step-by-step explanation:

given :- ( 2x + 3y + 2z )²

by using identity ( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ac

here a = 2x, b = 3y and c = 2z

( 2x + 3y + 2z )² = (2x)² + (3y)² + (2z)² + 2(2x)(3y) + 2(3y)(2z) + 2(2x)(2z)

= 4x² + 9y² + 4z² + 12xy + 12yz + 12xz

Answer 2

Step-by-step explanation:

(-2x) ²+(3y) ²+(-2z) ²+2*(-2x) *(3y) +2*(3y) *(-2z) +2*(-2z) *(-2x)

4x²+9y²+4z²-12xy-12yz+8zx Ans.

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