Question

factotorise each of the following expressions completely.

a) a^2+9a+8=0

thankyou who ever answers this​

Answer 1

Answer:

HEY MATE...

A^2 + 9A + 8 = 0

A^2 + 8A + 1A + 8 = 0

A(A+8) + 1(A+8) = 0

(A+1) (A+8) = 0

A = -1,-8

HOPE IT HELPS...!!!

FOLLOW ME @BRAINLYSTAR

Answer 2

Answer:

(a+1)(a+8)

Step-by-step explanation:

first we have to multiply the constant term with the coefficient of a^2 .

=>8*1=8

next step is to choose 2 factors of 8 such that they add up of subtract to give 9 ( co- effecient of a)

=> 8*1=8; 8+1=9

now split the middle term.

=> a^2+8a+1a+8=0

this can be written as

a(a+8)+1(a+8)

note : the terms in both of the braquets must be the same

=> (a+1)(a+8)

the factors of a are -1 and -8[ equate each to zero]

hope it helped

mark as brainlyest please