Question

Find the product of (4x + 5 )(4x + 1) , using proper identify.

Answer 1

Answer:

16x²-24x+5

Step-by-step explanation:

We have,

⇒(4x+5)(4x−1)

⇒16x

2

−4x+20x−5

⇒16x

2

+16x−5

Hence, this is the answer.

Answer 2

Answer:

Step-by-step explanation:

Given that,

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

Identity : ( a + b ) ( a + c ) = a² + ( b + c ) a + ab

= ( 4x )² + ( 5 + 1 ) ( 4x ) + ( 5 × 1 )

= 16x² + ( 6 )( 4x ) + 5

= 16x² + 24x + 5 is the answer.