anonymous
  • anonymous
use quadratic formula to solve. 2x^2-3x=-4
Mathematics
katieb
  • katieb
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
To use the quadratic you get it equal to 0 then you have your a, b, and c coefficients to plug in.
anonymous
  • anonymous
Quadratic equation: \[ax^2 + bx +c = 0\rightarrow x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}\]
anonymous
  • anonymous
\[2x^2-3x=-4 \rightarrow 2x^2-3x+4=0 \rightarrow a=2, b=-3, c=4 \] \[\rightarrow x = {{-b \pm \sqrt{b^2-4 \cdot a \cdot c}}\over{2 \cdot a}} = {{-(-3) \pm \sqrt{(-3)^2-4 \cdot 2 \cdot 4}}\over{2 \cdot 2}} \] \[= {{3 \pm \sqrt{9-32}}\over{4}} = {{3 \pm \sqrt{-23}}\over{4}} = {3 \over 4}\pm{\sqrt{23}\over{4}}\cdot i\] See also http://wolframalpha.com/input/?i=2x^2-3x%3D-4

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
U can also use x1+x2=-b/a and x1*x2=c/a, Viete, assuming you speak Slovak.

Looking for something else?

Not the answer you are looking for? Search for more explanations.