Question

Solve. x2 – x – 6 = 0

A.
{3, –2}

B.
{6, –1}

C.
{2, –3}

D.
{–2, –3}

Answer 1

(x-3)(x+2)=0
x=-2
x=3

Answer 2

You have a number of ways in which to solve a quadratic equation, such as this is:
1. quadratic formula
2. factoring
3. graphing

Choose the method most familiar to you, and then apply it. Next, try another method.

Answer 3

Solve. 2x2 + x – 1 = 2