Question

2x^2=15-x

Answer 1

so first i add x to both sides

so it would be
2x^2+x=15

Answer 2

then divide all by 2 and that is when i get lost

Answer 3

2x^2+x-15=0
Pr -30 sum 1
2x^2-5x+6x-15
x(2x-5)+3(2x-5)
(2x-5)(x+3)=0
2x-5=0 or x+3=0
x=5/2 or x=-3

Answer 4

Check:
x=-3
2*(-3)^2=15-(-3)
2*9=15+3 True
x=5/2
2*(5/2)^2=15-(5/2)
2*(25/4)=30/2-5/2
25/2=25/2

Answer 5

thank u

Answer 6

you are welcome

Answer 7

need help with an other one

Answer 8

OK?