Question

Which equation shows the quadratic formula used correctly to solve 7x^2=9+x for x?

Answer 1

The quadratic formula that can be used to correctly solve 7x^2 = 9 + x for 'x' is:
$x = \frac{1 + \sqrt{253}}{14}$
OR
x ≈ 1.20756955, -1.06471240

Answer 2

Hello! Thank you for your question! I would be happy to help!

So here is what you would get if you use the quadratic formula:

x = 1 +- √253 / 14

x ≈ 1.20756955, -1.06471240