SOLUTION: what is the trinomial function for 4a squared plus 9a plus 20.25 equals 21.25?

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Question 270102: what is the trinomial function for 4a squared plus 9a plus 20.25 equals 21.25?
Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
4a^2+9a+20.25=21.25
4a^2+9a-1=0
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Ed
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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=97 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 0.106107225224513, -2.35610722522451. Here's your graph:
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