Question

1. Expand the following.
(i) (5x+2y+3z) square


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Answer 1

Answer:

use identity (x + y + z) ^2

Answer 2

Step-by-step explanation:

We know that (a+b+c) ² = a²+b²+c²+2( ab + bc+ ca)

Given here a=5x b= 2y  c=-3z

substitute a,b,c in 1 st equation

(5x+2y-3z)² = 25x² + 4y² + 9z² + 20xy - 12yz - 30 xz

HOPE IT IS HELPFUL