## anonymous 5 years ago -6x^2 + 48 = 0

1. anonymous

subtract 48 from both sides: -6x^2=-48 divide both sides by (-6): x^2=8 take square root both sides: x=sq.rt(2*4)=2sq.rt(2)

2. anonymous

add 6x^2 to both sides, divide by 6, that the square root. don't forget the plus or minus

3. anonymous

inik i dont think your answer is in a format my teacher is looking for. Right now im doing test corrections and my teacher marked me down for putting the answer as " +- 8"

4. anonymous

$-6x^2=-48$ $6x^2=48$ $x^2=\frac{48}{6}=8$ $x=\sqrt{8}$ or $x=-\sqrt{8}$ and since $\sqrt{8}=\sqrt{4\times 2}=\sqrt{4}\times \sqrt{2}= 2\sqrt{2}$ your teacher might prefer the answer written in 'simplest radical form'