exam Maths Puzzle Numerical Ability

Divide:

x^2-2x-35
_________= ??????

x+5

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exam Other Question

15=e/0.5

12=1/2x

3=s/0.3

$385/k=$5

720=9t

4.52u=31.64

9.12 devided by s =2.4 Hi,
I need to graph -x Squared and (-x) squared, with the substition for x being; 2, 0, -1, and -3 and i was wondering what is the difference between -x squared and (-x) squared.