SOLUTION: Find all x that will make f(x)=0 f(x)=7x^2-2x-4

SOLUTION: Find all x that will make f(x)=0 f(x)=7x^2-2x-4

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Question 442611: Find all x that will make f(x)=0
f(x)=7x^2-2x-4
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

........all that will make
..use quadratic formula
....notice that , and

.........one solution

.........another solution

check: .

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