SOLUTION: more w.s. problems yay! Solve by factoring {{{2x^2-11x+15=0}}} also {{{11x=3x^2}}} Solve these by the quadractic formula? (use simplest radical form) a. {{{x^2-2x-11=0}}} b.

Question 63418: more w.s. problems yay! Solve by factoring

also
Solve these by the quadractic formula? (use simplest radical form)
a.
b.
Answer by sarahschober(35) (Show Source): You can put this solution on YOUR website!
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Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

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=48 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 4.46410161513775, -2.46410161513775. Here's your graph:

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

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=96 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.724744871391589, -1.72474487139159. Here's your graph:

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