OpenStudy (anonymous):

SOlve: 3x^2 = 147

6 years ago
OpenStudy (anonymous):

x^2=49 x=+/-7

6 years ago
Parth (parthkohli):

Divide both sides by 3. $$\Large \color{MidnightBlue}{\Rightarrow x^2 = 49 }$$ Find the sqrt of both sides.

6 years ago
OpenStudy (anonymous):

So x = 7

6 years ago
OpenStudy (anonymous):

or -7

6 years ago
OpenStudy (anonymous):

Or would it be x = 7 and x = -7

6 years ago
OpenStudy (anonymous):

+7 and -7, both will be roots of this equation

6 years ago
Parth (parthkohli):

Yea, or you could say: $$\Large \color{MidnightBlue}{\Rightarrow x = \pm7 }$$

6 years ago