this question is easy, but i made a simple mistake - used simultaneous equations at the end to cancel off. why did that not work?
If #p# = ap3+ bp – 1 where a and b are constants, and #-7# = 3, what is the value of #7#?
5
0
-2
-3
-5
OA -5
If #p# = ap3+ bp – 1 where a and b are constants, and #-7# = 3, what is the value of #7#?
5
0
-2
-3
-5
OA -5
