SOLUTION: f(x) = 2x^2 - 7x - 30 find th zeros of function algabraically

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Question 667719: f(x) = 2x^2 - 7x - 30 find th zeros of function algabraically
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+2x%5E2+-+7x+-+30+

to find the zeros of a function we are finding the X intercepts.
so y=o
2x^2 - 7x - 30 =0
2x%5E2-12x%2B5x-30=0
2x%28x-6%29%2B5%28x-6%29=0
%282x%2B5%29%28x-6%29=0
either 2x+5 =0 OR x-6 =0
-5/2 and 6 are the zeros of the function