Question

use the identity (x+a)*(x+b)x+ab to find the following products.
(4x+5)*(4x+1)​

Answer 1

Answer:

16x^2+24x+5

Step-by-step explanation:

Using identity

(x + a) (x + b) = {x}^{2} + (a + b)x + ab

a=5

x=4x

b=2

({4x})^{2} + (5 + 1)4x + (5*1)=

$16 { x}^{2} + 24x + 5$