OpenStudy (anonymous):

Solve 8x2 + 7x - 15 = - 7.

4 years ago
OpenStudy (anonymous):

$8x ^{2} + 7x - 15 = -7$

4 years ago
OpenStudy (anonymous):

4 years ago
OpenStudy (anonymous):

It will become $8x ^{2} + 7x = 8$

4 years ago
OpenStudy (anonymous):

Now add 8 (which becomes -8) back to the equation, it will become $8x ^{2} + 7x - 8$

4 years ago
OpenStudy (anonymous):

8x^2 + 7x 8

4 years ago
OpenStudy (anonymous):

from there you get two numbers if you add you get +7 and if multiply you get -8

4 years ago
OpenStudy (anonymous):

^ the equation must be 8x2+7x−8=0

4 years ago
OpenStudy (anonymous):

idk how i can help you then sorry if you cant get that.

4 years ago