exam
Maths Puzzle
Numerical Ability
f(x)=-2x^2-3x+8, find f(-2)please!
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exam Other Question
5-2x=3x-7x+25
5(d+4)=7(d-2)
3g-3=3(7-g)
I really just dont understand equation with both sides. So explain CLEARLY please.
There are 24 students in a class. We are working in groups of 4 (total of 6 groups of 4) How many days can we group the students so that no 2 students are together more than once?