y^2-144=0
add 144 to the other side to get:
y^2=144
square root both sides
y=12
solve:
y(squared)-144=0
please help, for like the other one, i have this on my final too.
Thank You!
4 answers
what if y were -12 :)
y=12 or y=-12
:(
:(
Nasty quadratics.
1 answer