exam
Maths Puzzle
Numerical Ability
i need help with this question i have no idea how to beging to solve it.
it says : subtract the lower polynomial from the upper one
2x^2y-5xy^2+2 and
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exam Other Question
an executive invest $22000, some at 7% and some at6% annual interest. If he recieves an annual return of $1420, how much is invested in each rate?
Find a quadratic function in the form of y = ax2 + bx + c that would have the given roots.
1. x = 2i and x = -2i
2. x =3 + i and x = 3 - i