SOLUTION: 2x^2-9x-9 grrr this was given to my little brother as homework who is 2 years younger than me i havnt done quadratic eqautions for ages please help

Question 42496: 2x^2-9x-9 grrr this was given to my little brother as homework who is 2 years younger than me i havnt done quadratic eqautions for ages please help
Answer by askmemath(368) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=153 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 5.34232921921325, -0.842329219213245. Here's your graph:

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