Question

(4x+5)(4x-1) f find the following squares by using identities

Answer 1

Step-by-step explanation:

(4x+5)(4x-1)

Using identity

(x+a)(x+b)=x²+(a+b)x+ab

(4x+5)(4x-1)=(4x)²+(5-1)4x+5×(-1)

=16x²+16x-5

Hope it helps u..

Please mark as brainiliest

Answer 2

Step-by-step explanation:

(x + a) (x + b) = x^2 + (a + b)x + (a × b)

(4x + 5) (4x - 1) = 4x^2 + [5 +(-1)] 4x + (5) (-1)

= 16x^2 + 16x - 5

HOPE IT HELPED

THANK YOU