Question

Expand. (4x+5y)(4x-5y). with identity

Answer 1

Answer:

16x^2 - 25y^2

Step-by-step explanation:

(a+b)(a-b) = a^2 - b^2

(4x+5y)(4x-5y) = 16x^2 - 25y^2

Answer 2

Hey mate here is your answer :

In this we use identity (a+b) (a-b) =a square - b square.

(4x+5y)(4x-5y)

=

$( {4x})^{2} - ({5y})^{2}$

=

${16x}^{2} - 25 {y}^{2}$

Hope it is helpful.

PLZZZ mark brainliest.