You have come to the correct place if you are looking to solve the quadratic equation 81x squared plus 74x minus 7 equals 0, also known as 81x² + 74x - 7 = 0. Below, we walk you through how to find the answer.
To find the two possible answers to 81x^2 + 74x - 7 = 0, we will start by rewriting the equation in factored form. Then, we will create two separate equations that we can use to solve 81x² + 74x - 7 = 0.
Below is 81x squared plus 74x minus 7 in factored form. As you can see, 81x² + 74x - 7 has been grouped into two sets of parentheses.
(81x - 7)(x + 1)
Next, we set each set of parentheses equal to 0 and solve for x to get the two answers to 81x^2 + 74x - 7 = 0.
(81x - 7) = 0
x1 = 7/81
(x + 1) = 0
x2 = -1
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