Solve -70x² - 87x + 40 = 0

You have come to the correct place if you are looking to solve the quadratic equation negative 70x squared minus 87x plus 40 equals 0, also known as -70x² - 87x + 40 = 0. Below, we walk you through how to find the answer.

To find the two possible answers to -70x^2 - 87x + 40 = 0, we will start by rewriting the equation in factored form. Then, we will create two separate equations that we can use to solve -70x² - 87x + 40 = 0.

Below is negative 70x squared minus 87x plus 40 in factored form. As you can see, -70x² - 87x + 40 has been grouped into two sets of parentheses.

-(14x - 5)(5x + 8)

Next, we set each set of parentheses equal to 0 and solve for x to get the two answers to -70x^2 - 87x + 40 = 0.

(14x - 5) = 0
x₁ = 5/14

(5x + 8) = 0
x₂ = -1 3/5

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