Question

help with algebra problem

Answer 1

ok.

Answer 2

If you typed in that answer, {5, -4} it is incorrect. BTW...are you using MathXL?

Answer 3

@swagmaster47 did you just change your profile pic?

Answer 4

x^2 -x -20 = (x -5)(x+4)

x-5=0
x= 5

x+4=0
x=-4

so the roots are -4 and 5

Answer 5

And you can check @jhonyy9's factoring by distributing (x - 5)(x + 4).

Answer 6

yes so than you see when substitute the 5 in place of x inside first parantheses 5-5 will add you zero so zero multiplid by indifferent will result zero

yes ?

so with -4 is the same way too

Answer 7

just -4 substitute in place of x inside second parentheses ,yes ?

Answer 8

was my pleasure


bye

Answer 9

do you understand it or not ?