Question

if x^2+3x-70=(x+9)(x+b) , then a+b equals to?
answers
a) -17 B)-3 C)3 D)17 E)32

Answer 1

a=7 and b=-10
then a+b=-3
B)

Answer 2

B

Answer 3

how did you guys get a where is a
and how dose 9*(-10)=-70?

this doesn't make any sense

Answer 4

does*

Answer 5

it might make alittle more since if she had said
if x^2+3x-70=(x+a)(x+b), then a+b equals to?

a=-7 and b=10

a+b=-7+10=3

Answer 6

the answer is C

Answer 7

judith do you understand?

Answer 8

i guess not lol

Answer 9

lol yeaa i get it thanks(: