Solve -66x² + 39x + 90 = 0

You have come to the correct place if you are looking to solve the quadratic equation negative 66x squared plus 39x plus 90 equals 0, also known as -66x² + 39x + 90 = 0. Below, we walk you through how to find the answer.

To find the two possible answers to -66x^2 + 39x + 90 = 0, we will start by rewriting the equation in factored form. Then, we will create two separate equations that we can use to solve -66x² + 39x + 90 = 0.

Below is negative 66x squared plus 39x plus 90 in factored form. As you can see, -66x² + 39x + 90 has been grouped into two sets of parentheses.

-(6x - 9)(11x + 10)

Next, we set each set of parentheses equal to 0 and solve for x to get the two answers to -66x^2 + 39x + 90 = 0.

(6x - 9) = 0
x₁ = 1 1/2

(11x + 10) = 0
x₂ = -10/11

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