exam Maths Puzzle Numerical Ability

Solve the substitution:

(3x + 5y = 5
(x -2y = 9

Read Solution (Total 0)

exam Other Question

I keep getting stuck on this problem please help.
^4sq rt t^2s - 3 ^4sq rt t^2s This problem is really confusing me. Can someone please help? Given
f(x) = -x3 + x2 + 3x + 4, find f(-1), f(0), and f(1). Thanks.