one more:
3x^2 - 147 = 0
a) -47, 49
b) -7, 7 ~~MY ANSWER~~
c) -square root 7 , square root 7
x^2 - 81 = 0
a) -square root 9 , square root 9
b) -81 , 81
c) -9 , 9 ~~ MY ANSWER ~~
d) no real solutions
3 answers
both look ok.
Okay, Thanks!