exam Maths Puzzle Numerical Ability

Please help me solve this problem:
If f(x) = x^3/x^2 -4, find f(x+2)
Thank You

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exam Other Question

can some please help me Tthanks in advance .
i have to get the factor completely;
1) x^5y^3-3x^4y^2-28x^3y.

2) x^3-2x^2+6x-12

Thanks millon . How do i convert 45 miles per hour to feet/second?