Question

Expand using the identity 5 (x+3y-2z)^2

Answer 1

Answer:

5(x+3y-2z)² it is in the form of (a+b+c)²

like 5{x+3y+(-2z)}²

Step-by-step explanation:

so (a+b+c)²=a²+b²+c²+2×a×b+2×b×c+2×c×a

ATQ 5(x²+9y²+4z²+2×x×3y+2×3y×-2z+2×-2z×x)

=x²+9y²+4z²+6xy-12yz-4xz