Question

The solutions to a certain quadratic equation are x = 4 and x = -3. Write the equation in standard form below.

x2 + x - 12 = 0
x2 - x - 12 = 0
x2 - 7x + 12 = 0

Answer 1

x2 - x - 12 = 0

Explanation:

(x - 4) (x + 3) = 0

x(x + 3) -4(x + 3) = 0

x2 + 3x -4x - 12 = 0

x2 -x -12 = 0