SOLUTION: Find the zeros of the function f(x)=4x^2-11x-3

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Question 1198688: Find the zeros of the function f(x)=4x^2-11x-3
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Find the zeros of the function f%28x%29=4x%5E2-11x-3

set f%28x%29=0

4x%5E2-11x-3=0.......factor
4x%5E2%2Bx-12x-3=0
%284x%5E2%2Bx%29-%2812x%2B3%29=0
x%284x%2B1%29-3%284x%2B1%29=0
%28x+-+3%29+%284x+%2B+1%29+=+0
solutions:
if %28x+-+3%29=+0=>x=3
if +%284x+%2B+1%29+=+0=>x=-1%2F4