SOLUTION: what is 18x squared minus 9x minus9

Question 697958: what is 18x squared minus 9x minus9
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

if we set it equal to zero we can solve for
....since only or or both will make equation true
so, if ....=>...than
or if ....=>...than

see it on a graph:

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