Question

My answer is C
Solve. 2x2 + x = 15. (1 points)
Answer

x = 5/2 and x = -3

x = 2 and x = -15

x = -2 and x = 5/3

x = 17 and x = 13

Answer 1

2x2 + x = 15
2x2 + x -15 =0
(2x-5)(x+3)=0
x= 5/2 OR x=-3

Answer 2

You can also use formula, which is much easier if you ask me
\[\frac{ -b \pm \sqrt{b ^{2}-4*a*c} }{ 2*a }\]

a=2, b=1, c=-15

Answer 3

aww you're so kind, thank you

Answer 4

x1 = 2.5
x2 = -3
As @julliemyers said :)
Good luck!

Answer 5

thanks!