Mathematics: What are the solutions of the quadratic equation? 4x^2 – 9x - 9=0

What are the solutions of the quadratic equation?

zahradawkins2007

11.02.2022

x=-0.75,3

Step-by-step explanation:

We can use the quadratic formula to solve for :

Given equation: 4x^2-9x-9=0

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$ (using quadratic formula, ax^2+bx+c = 0 )

$x=\frac{9\pm\sqrt{(-9)^2-4(4)(-9)} }{2(4)}$ (substitute numbers in)

$x=\frac{9\pm\sqrt{225} }{8}$

x=-0.75,3

Hope this helps :)

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cxttiemsp021

16.05.2021

Sorry idk im just trynna earn points

Step-by-step explanation:

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