Question

Expand :- (x/2+2y/3+z/5)²​

Answer 1

Answer:

simplest form = x²/4 + 4y²/9 + z²/25 + 2xy/3 + 8y/15 + zx/5

Step-by-step explanation:

(x+y+z)² = x²+y²+z²+2xy+2yz+2zx

(x/2+2y/3+z/5)² = (x/2)² + (2y/3)² + (z/5)² + (2×x/2×2y/3) + (2×2y/3×z/5) + (2×z/5×x/2)

= x²/4 + 4y²/9 + z²/25 + 2xy/3 +

8y/15 + zx/5