exam Maths Puzzle Numerical Ability

write an equation for the circle that satifies each set of conditions.
center (-1,-5), radius of

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I need major help

solve each of the following quadiatic equations by completly the square.

x^2-6x-3=0

and 2x^2+10x+11=0

thanks a million For the function f(x)=x^2(x-2)
a) find the x intercepts, for each intercept, indicate whether the graph of f crosses (C) or touches (T) the x axis at each intercept.

b)Find the