Question

(5ab - 8) (5ab + 8C) do this with suitable identity​

Answer 1

Answer:

(5ab-8c)(5ab+8c)

$=( {5ab})^{2} - ({8c})^{2} \\ = 25 {a}^{2} {b}^{2} - 64 {c}^{2}$

Answer 2

Answer:

=(5ab)^2 –(8c)^2

=25a^2b^2 square - 64 C^2