SOLUTION: Solve using the quadratic formula: 15x^2+7x=2

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Question 202158: Solve using the quadratic formula: 15x^2+7x=2
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve using the quadratic formula: x+=+%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F2a
15x%5E2%2B7x+=+2 First subtract 2 from both sides.
15x%5E2%2B7x-2+=+0 Apply the formula, noting that a = 15, b = 7, and c = -2.
x+=+%28-7%2B-sqrt%287%5E2-4%2815%29%28-2%29%29%29%2F2%2815%29 Evaluate.
x+=+%28-7%2B-sqrt%2849-%28-120%29%29%29%2F30
x+=+%28-7%2B-sqrt%28169%29%29%2F30
x+=+%28-7%2B13%29%2F30 or x+=+%28-7-13%29%2F30
highlight%28x+=+0.2%29 or highlight%28x+=+-0.67%29