Question

b^2 - 8a - 9 is my question

Answer 1

Answer:

this is your question so what we do

Answer 2

Answer:

Step-by-step explanation:

The first term is,  a2  its coefficient is  1 .

The middle term is,  -8a  its coefficient is  -8 .

The last term, "the constant", is  -9  

Step-1 : Multiply the coefficient of the first term by the constant   1 • -9 = -9  

Step-2 : Find two factors of  -9  whose sum equals the coefficient of the middle term, which is   -8 .

     -9    +    1    =    -8    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -9  and  1  

                    a2 - 9a + 1a - 9

Step-4 : Add up the first 2 terms, pulling out like factors :

                   a • (a-9)

             Add up the last 2 terms, pulling out common factors :

                    1 • (a-9)

Step-5 : Add up the four terms of step 4 :

                   (a+1)  •  (a-9)

            Which is the desired factorization

hope it helps

:)