exam Maths Puzzle Numerical Ability

simplify: -2y^2+y+9y^2-10y

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exam Other Question

Can I get some help with this word problem?

A square has sides of length 3x - 2cm. Express the area of the square as a polynomial.


Thank you for your time.
Given: f(x)= 7-2x and g(x)= 2x^2-1, find (f-g)(x) and (f*g)(x).


Thank you for you help!
Matt