exam Maths Puzzle Numerical Ability

Solve: (10x+9)^2=112

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exam Other Question

1)Graph the function g(x)= (x-1)3

2)f(x)= x2-2 my answer is f(x)=2x-8 /f(3)=2(3)-8 / 3=8-8/ 3=0

3)Draw the graph of the following linear function and give the domain and ra (x-3)^2___(y+2)^2
------- + -------- = 1
16________25

Find the center, vertices, co-vertices, and foci for the ellipse!!

Thanks Hope you can help