SOLUTION: 30=1/2�3(x+1)(2x-1)

Question 972437: 30=1/2�3(x+1)(2x-1)
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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Multiply each side by 2/3.

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=169 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 3, -3.5. Here's your graph:

ANSWER: x=3 or x=-3.5
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