SOLUTION: Help Solve please. I am so confused!! Multiply.[a + 1/5][a+1/4] Thank you for your help.

Question 150432: Help Solve please. I am so confused!!
Multiply.[a + 1/5][a+1/4]
Thank you for your help.
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!
Multiplying,

++
++
++ -----> your answer when multiplied.
To get "a", by quadratic eqn: ,,

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=0.0025 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -0.2, -0.25. Here's your graph:

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