You have come to the correct place if you are looking to solve the quadratic equation 64x squared plus 16x minus 99 equals 0, also known as 64x² + 16x - 99 = 0. Below, we walk you through how to find the answer.
To find the two possible answers to 64x^2 + 16x - 99 = 0, we will start by rewriting the equation in factored form. Then, we will create two separate equations that we can use to solve 64x² + 16x - 99 = 0.
Below is 64x squared plus 16x minus 99 in factored form. As you can see, 64x² + 16x - 99 has been grouped into two sets of parentheses.
(8x - 9)(8x + 11)
Next, we set each set of parentheses equal to 0 and solve for x to get the two answers to 64x^2 + 16x - 99 = 0.
(8x - 9) = 0
x1 = 1 1/8
(8x + 11) = 0
x2 = -1 3/8
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