# How do you solve the equation #4x^2+9x-1=0# by completing the square?

##### 2 Answers

**Solution:**

#### Explanation:

Solution:

#### Explanation:

**Step 1.** Factor out the 4 from in front of the

**Step 2.** Take the coefficient of the

When you add a number and subtract it, that's like adding

Middle term:

Cut it in half:

Square the result:

Next, add and subtract this term

**Step 3.** Use the left three terms to make a perfect square

**Step 4.** Simplify the fraction and multiply

**Step 5.** Use algebra to solve for