exam Maths Puzzle Numerical Ability

multiply and simplify:

x^5y^3/x^2+13x+30 multiplication sign x^2+2x-3/x^7y^2

Thanks soooo much !

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exam Other Question

Nancy can paint a house twice as fast as Terry can. They year they worked together it took them 7 days. How long would it take each to paint the house alone? P(x)=x^2-3xy+y^2
r=-5x^2+2xy-3y^2