exam Maths Puzzle Numerical Ability

Which of the ordered pairs
(0,0)(-2,10)(-1,-5)(-3,9)
are solutions for the equation y = 5x?

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exam Other Question

Factor by grouping
What steps do I use to solve this?

x3 + x2 + 2x + 2
x=3


g(x)=1/2x-3