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Solve the quadratic
8x^2 - 5x - 4 = 0
Thanks!

Solve the quadratic 8x^2 - 5x - 4 = 0 Thanks!-example-1

1 Answer

5 votes

Answer:

x= -0.461

x= 1.086

Explanation:

using the quadratic formula

A=8, B=-5, C=-4

The evaluate


x=\frac{-(-5) +\sqrt{(-5)x^(2) -4*8*(-4)} }{2*8} and x=\frac{-(-5) -\sqrt{(-5)x^(2) -4*8*(-4)} }{2*8}

calculate


x=(5+√(25+128) )/(16) } and x=(5-√(25+128) )/(16) }
Simplify


x=(5+3√(17) )/(16) and x=(5-3√(17) )/(16)

simply

x= -0.461 and x= 1.086

User Jeph
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