SOLUTION: Use the quadratic formula to solve for x. 7x^2 - 3x - 2 = 0 (If there is more than one solution, separate them with commas.)

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Question 391869: Use the quadratic formula to solve for x.
7x^2 - 3x - 2 = 0
(If there is more than one solution, separate them with commas.)
Answer by jjordan95(63) About Me  (Show Source):
You can put this solution on YOUR website!
First of all, the quadratic equation is: x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
The function 7x^2-3x-2 is in the form ax%5E2%2Bbx%2Bc
Therefore,
a=7
b=-3
c=-2
Now you can simply plug in the variables.
x=%28-%28-3%29%2Bsqrt%28%28-3%29%5E2-4%287%29%28-2%29%29%2F%282%287%29%29%29
and
x=%28-%28-3%29-sqrt%28%28-3%29%5E2-4%287%29%28-2%29%29%2F%282%287%29%29%29
The answers end up being:
x=%283%2Bsqrt%2865%29%29%2F14%29
and
x=%283-sqrt%2865%29%29%2F14%29
Hope this help,
J