exam
Maths Puzzle
Numerical Ability
Rewrite the expression x^3-2x^2y+xy^2 so that it is easy to calculate the its value without a calculator when x=21 and y=19.
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exam Other Question
Which two expressions are equivalent? Provide evidence for your answer
sqrt-49,-7,-sqrt49
Given the coordinate of one endpoint af AB and its midpoint M, find the coordinates of the other endpoint.
B(-5,1), M(1,-1)