Question

Multiply (4x +5)(4x -5)​

Answer 1

Answer:

4X²–5²

Step-by-step explanation:

we all known that

a²–b²= (a+b)(a–b)

So, therefore (4X+5)(4X–5)= 4X²–5²

Answer 2

Answer:

(4x)^2 × (5)^2

Step-by-step explanation:

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

( 4x +5 )( 4x -5 )=( 4x )^2 × ( 5 )^2