# How do you solve quadratic equation: #x^2+2x-8# by factoring?

##### 1 Answer

#### Explanation:

There is a contradiction in the question.

It is an expression, not an equation, so it cannot be solved.

However, let's assume it was supposed to read as

**Find the factors.**

Reading from the back we have the following information.

"Find the factors of 8 which subtract (-) to make 2".

"The signs will be different (because of -)"

"There must be more positives. (because of +2)"

Factors of 8 are either 8 x 1 or **4 x 2** .

**4-2 = 2** , so these are the factors we want.

Write the factors in the brackets:

Fill in the signs:

Now because the answer is 0, each bracket could be 0.

If

If

These are the solutions to the equation.