Question

(i) (x + 5) (x + 4)​

Answer 1

Answer:

Hiii mate....

Step-by-step explanation:

(x + 5 ) ( x + 4 )

» x ( x + 4 ) + 5 ( x + 4 )

= x² + 4x + 5x + 20

= x² + 9x + 20 answer...

Hope it will be helpful to you ......

Answer 2

Answer:

hey mate

(x+5) (x+4) = x²+(5+4)x+5×4

= x²+9x+20

using identity

(x+a) (x+b) = x²+(a+b)x+ab

hope it will help you