Question 131835
How do you solve this so I can understand f(x)=-2x^2+2x+6
You cannot "solve" it when you have two variables.
Maybe this is what you mean.
-2x^2+2x+6 = 0
-2(x^2-x-3) = 0
Divide thru by -2 to get:
x^2-x-3 = 0
Now use the quadratic formula to get:
x = [1 +- sqrt(1 -4*-3)]/2
x = [1 +- sqrt(13)]/2
x = (1+sqrt(13)]/2 or x = (1-sqrt(13))/2
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Cheers,
Stan H.