exam Maths Puzzle Numerical Ability

Graph (x+3) (x-2)^2=0 (use maxs, mins, x and y intercepts)

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exam Other Question

This is combining rational expressions with an unlike denominator.

((x^2+2)/(x^2+2x-15)) + ((7-4x)/(15-2x-x^2))
76. (x^3-1)/(x^2+1) divided by (9x^2+9x+9)/(x^2-x)

I do not know where to start on this problem let alone how to do it.