exam Maths Puzzle Numerical Ability

I am lost on this one
anybody help please

given f(x)=3x^2-7x+2 and g(x)=4x-3, find (f-g)(5)

thanks

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exam Other Question

Which of the ordered pairs is a solution for the equation 2x - 3y = 6?
A) (0, 2)
B) (-3, 0)
C) (-3, -2)
D) (0, -2) Please explain and show me how to solve this promblem. That way I don't need to ask again.Thanks!

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