SOLUTION: 2m^2-m-15=0 quadratic problem, can you help me solve this step by step with text along side? Im having so many problems solving these types of problems, thanks and God Bless

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Question 638159: 2m^2-m-15=0 quadratic problem, can you help me solve this step by step with text along side? Im having so many problems solving these types of problems, thanks and God Bless
Found 2 solutions by reviewermath, MathTherapy:
Answer by reviewermath(1029)   (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=121 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 3, -2.5. Here's your graph:
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

2m^2-m-15=0 quadratic problem, can you help me solve this step by step with text along side? Im having so many problems solving these types of problems, thanks and God Bless



We're looking for factors of - 30 (c * a) whose sum is - 1 (b). These are: - 6 & 5, so replacement for b is: (- 6m + 5m)

now becomes:



2m(m - 3) + 5(m - 3) = 0

(2m + 5)(m - 3) = 0

2m + 5 = 0 or m - 3 = 0

2m = - 5 or m = 0 + 3

, or

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