Question

Which is a solution to the equation 3x2 + 2x − 20 = 2x2 + 15?

A) −12
B) −7
C) −5
D) 2

Answer 1

33/2

Explanation:

6+2x -20= 2×2 +15

-14+2x=19

add 14 to both sides

2x=33

divide 2 in both sides

x=33/2