I know this is probably a pretty easy question but I'm having a mental block at the minute...
Anyway the question is: "Show that the curves C1 and C2 intersect at the points (-2,16) and (1,7)"
C1 : y= -x^2 - 4x +12
C2 : y= 5x^2 + 2x
N.B. I'm new to the forums and wasn't sure how to write "squared" so in case I got it wrong "^2" = squared
Thanks in advance!