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Using the Quadratic Formula solve the question!Explain!

Using the Quadratic Formula solve the question!Explain!-example-1
User Verbatus
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1 Answer

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Answer:

Explanation:

First you want to move everything to one side:

9n^2 - 7n - 4 = 0

The quadratic formula is (-b +- sqrt(a^2 - 4ac)) / 2a

In the above equation, 9 is a, -7 is b, and -4 is c

Plug those into the quadratic formula

(-(-7) +- sqrt(9^2 - 4(9)(-4))) / 2(9)

7+sqrt(81 + 144) / 18

7 + sqrt (225) / 18

7+ 15 / 18

22 / 18 or 11/9

User Vinson
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