Question

5. Find the value of the polynomial
a2+2ab+b2 when a=-2 and b=3​

Answer 1

Explanation:

a² + 2ab + b² = (a+b)²

=(2+3)² = 5² = 25

Answer 2

Explanation:

$\frak\red{Question}\:❓ \\ {a}^{2} + 2ab + {b}^{2} \\ = { - 2}^{2} + 2 \times - 2 \times 3 + {3}^{2} \\ = 4 - 12 + 9 \\ = 1$