Solve the quadratic equation 8x²-5x-4=0
Give your answer to 3 significant figures


Sagot :

The solution of the quadratic equation 8x² – 5x – 4 = 0 will be 1.085 and negative 0.460.

What is the solution of the equation?

The solution of the equation means the value of the unknown or variable.

The quadratic equation is given below.

8x² – 5x – 4 = 0

Then we have

a = 8, b = -5, c = -4

Then the solutions will be

[tex]\rm x = \dfrac{-b\pm \sqrt{b^2 - 4ac}}{2a}\\\\\\\rm x = \dfrac{-(-5)\pm \sqrt{(-5)^2 - 4 * 8 * (-4)}}{2 * 8 }\\\\\\x = \dfrac{5 \pm 12.37}{16}\\\\\\x = \dfrac{5- 12.37}{16}, \dfrac{5 +12.37}{16}[/tex]

On further solving, we have

x = 1.085, -0.460

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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