Question

x^2 + x > 3

Solve the inequality in terms of intervals. Interval notation.

Medal!

Answer 1

do I try to make it a square? subtract the 3 and use the quadratic formula? I'm stuck. please help!

Answer 2

Set it equal to 0. It won't factor so use the quadratic formula. The roots are:
\[\frac{-1\pm \sqrt{13}}{2}\]

Answer 3

in decimal form: 1.3 and -2.3

Answer 4

So the factors are: (x-1.3)(x+2.3)