exam
Maths Puzzle
Numerical Ability
How do you factor this completely and does it have a GCF?
x^10y^3-4x^9y^-21x^8y
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exam Other Question
[(2+3)to the power of 2 -4.5]+7
Are the following lines parallel, perpendicular, or neither?
x-6y=12
6x+y=6