Question

solve this by using algebraic identities- (4x-5y)^2-16z^2​

Answer 1

here is your answer

Answer 2

${(4x - 5y)}^{2} - 16 {z}^{2} \\ = {(4x - 5y)}^{2} - {(4z)}^{2} \\ = (4x - 5y + 4z)(4x - 5y - 4z)$

Identity used:

${a}^{2} - {b}^{2} = (a + b)(a - b)$