You have come to the correct place if you are looking to solve the quadratic equation x squared plus 30x minus 31 equals 0, also known as x² + 30x - 31 = 0. Below, we walk you through how to find the answer.
To find the two possible answers to x^2 + 30x - 31 = 0, we will start by rewriting the equation in factored form. Then, we will create two separate equations that we can use to solve x² + 30x - 31 = 0.
Below is x squared plus 30x minus 31 in factored form. As you can see, x² + 30x - 31 has been grouped into two sets of parentheses.
(x - 1)(x + 31)
Next, we set each set of parentheses equal to 0 and solve for x to get the two answers to x^2 + 30x - 31 = 0.
(x - 1) = 0
x1 = 1
(x + 31) = 0
x2 = -31
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