exam Maths Puzzle Numerical Ability

i need a little help subtracting this please!
3
over
x^2+4x+3
minus
1
over
x^2-9

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exam Other Question

solve by grouping
x^5 + 4x^3 + 7x^2 + 28 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.