OpenStudy (anonymous):

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

5 years ago
OpenStudy (anonymous):

\[8x ^{2} + 7x - 15 = -7\]

5 years ago
OpenStudy (anonymous):

Add +15 to -7

5 years ago
OpenStudy (anonymous):

It will become \[8x ^{2} + 7x = 8\]

5 years ago
OpenStudy (anonymous):

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

5 years ago
OpenStudy (anonymous):

8x^2 + 7x 8

5 years ago
OpenStudy (anonymous):

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

5 years ago
OpenStudy (anonymous):

^ the equation must be 8x2+7x−8=0

5 years ago
OpenStudy (anonymous):

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

5 years ago