Question

Solve: x^2+x=20

Answer 1

Any ideas?

Answer 2

quadratic formula?
these are my answer choices though...
a: x=5 and x=-4
b: x=5 and x=4
c: x=-5 and x=-4
d:x=-5 and x=4

Answer 3

$$x^2 +x=20$$

Answer 4

\[a=1, b=1, c=20?\]

Answer 5

I wouldn't rush to the formula until I tried factoring first ;)

Answer 6

now factor it

Answer 7

But, how? :(
a=2? b=1? c=-20?

Answer 8

Do the diamond

Answer 9

?