How do you solve 6r ^ { 2} - 75= - 15r?

1 Answer
Mar 31, 2017

X= 2.5 or -5

Explanation:

Well, this is a quadratic function so you start by getting into quad form.
Ax^2+Bx+C=0

So here's what it comes out to be.

6r^2+15r-75=0

Now we just put it into the quadratic formula which I'm sure you know is

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From there you simply plug in your A, B, and C and solve!

The answer comes out to be

X= 2.5 or -5

Let me know if this helped or if you need help in the future with math/science!