Question

Verify the identity; (a + b) ^ 2 = a ^ 2 + 2ab + b ^ 2 for a = 3 and b = - 4 .

Answer 1

Answer:

using the above formula

(3+(-4)^2=3^2+ 2×3×(-4)+(-4)^2

=9-24-16

=-1

hope my answer helps you..