Question

(4x+ 5) (4x+ 1) class 8 with formula (x+a) (x+b) = x² + (a+b)x + ab ( this is formula solve this question with this formula )

solve correctly don't snap do by own Ignore who don't know the ans please fastly with full and clear explanation​

Answer 1

Answer:

4x²+(5+1)4x+5*1.

16x²+24x+5.

If we factorise 16x²+24x+5 we will get the result (4x+ 5) (4x+ 1).

Answer 2

Step-by-step explanation:

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

Here,

4x is x , a is 5 and b is 1

So,

By using given formula,

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

= 4x square +( 6) 4x+6

= 4 x square + 24x +6 = 4xsquare + 24x + 6 is the answer.

Hope it would be helpful for you.