Solve using the quadratic formula 2x^2+8x-5=0

Below

Step-by-step explanation:

● 2x^2 + 8x - 5 = 0

This is a quadratic equation

● a = 2

● b = 8

● c = -5

The quadratic formula is b^2 -4ac

● b^2 - 4ac

● 8^2 - 4 (2) (-5)

● 104

This is a positive value so the equation two solutions x' and x"

√104 is approximatively 10

● x' = (-b -√104)/2a = (-8-10)/4 = -4.5

● x" = (-b + √104)/2a = (-8+10)/4 = 0.5

The solutions are 0.5 and -4.5

Hey there!!

I have solved it on copy.

Hope it helps...

3

step-by-step explanation:

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