SOLUTION: Show and explain your steps using the quadratic formula. 2x^2-3x-2=0 Thank you for your time and help!

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Question 111386This question is from textbook Introductory Algebra Seventh edition
: Show and explain your steps using the quadratic formula.
2x^2-3x-2=0
Thank you for your time and help! This question is from textbook Introductory Algebra Seventh edition

Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
FOR ax%5E2%2Bbx%2Bc=0, x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29

Here, 2x%5E2-3x-2=0+, where a=2, b=-3, c=-2

Substituting,

x=%28-%283%29%2B-sqrt%28%283%29%5E2-%284%2A2%2A%28-2%29%29%29%29%29%2F%282%2A2%29
x=%283%2B-sqrt%289-%28-16%29%29%29%2F%284%29
x=%283%2B-sqrt%289%2B16%29%29%2F%284%29
x=%283%2B-sqrt%2825%29%29%2F%284%29
x=%283%2B-5%29%2F%284%29
x=%283%2B5%29%2F4 or x=%283-5%29%2F4
x=8%2F4 or {{x=-2/4}}}
x=2 or x=-1%2F2

Power up,
HyperBrain!