exam
Maths Puzzle
Numerical Ability
Evaluate f(-3). f(x)={-x^2+2x, x<1
{-2x+3, x>1
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exam Other Question
It takes Bob three hours to mow a lawn, and John can mow the same lawn in 2 hours. How long would it take the two of them working together to mow that lawn?
find each product
2xy(3x²-xy+7)