anonymous
  • anonymous
x² + 4x - 7 = 0 Solve, show work.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
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.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
you have to use the quadratical general formula.
anonymous
  • anonymous
can you show me how?
anonymous
  • anonymous
Ok general formula for quadratic equations is the following: \[x=(b^{2}\pm \sqrt{b^{2}}-4ac)/2a\] The big mistery here is what a, b and c means, right? If you look the coefficient of x^2, you can see it is 1. The same for the coefficient of x that is equal to 4. You can realize that c is equal to -7. Now replace in the formula above each value and you will find the answer (values for x)

Looking for something else?

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