exam Maths Puzzle Numerical Ability

If P(y)=10y^2+4

Q(y)=y^3-5y^2+3y+7

Find 3P(y)+q(y)

3(10y^2+4+y^3-5y^2+3y+7)

5y^2+11+y^3+3y

5y^2+11+y^3+3y

Is this correct?

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