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Maths Puzzle
Numerical Ability
Simplify by dividing:
x^3+2x^2+3x-6/x-1
I don't understand why I can't do this, but I know once I see it I'll hopefully understand! :)
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book Other Question
Expand terms
{{{y^2+(x+1)^2-2x^2=100}}} and
{{{x^2+(2y-1)^2=20}}}
how does one graph y=x/2 ?