exam
Maths Puzzle
Numerical Ability
9A + 6B + 4A - 7B =
Read Solution (Total 0)
exam Other Question
evaluate the determinant:
| 1 -3 2 0|
|-3 -1 0 -2|
| 2 1 3 1|
| 2 0 -2 0|</PRE>
I could use some help in understanding this problem from a homework sheet. If f(x)=x^2+2x,find f(-1). thank you.