Question

Is x-3 a solution to the equation -3x^2=-27?Explain

Answer 1

-3x^2+27=0

Answer 2

You will get (x-3)(x+3)=0
So?

Answer 3

so it is a solutiion?

Answer 4

@LXelle

Answer 5

isn't it obvious enough?

Answer 6

Sorry.Thanks

Answer 7

May you exlain how you got this awnser as far as solving it???

Answer 8

Do you know how to solve quadratics ?

Answer 9

no

Answer 10

@AngusV

Answer 11

From -3x^2 +27 = 0 you deduce it to -x^2 +9 = 0

Answer 12

And after that, you solve the quadratic equation. Note that in this case a=-1, b=0 and c=9.

Answer 13

As for solving quadratics,

http://lmgtfy.com/?q=how+to+solve+quadratics