book Maths Puzzle Numerical Ability

how do you work out the table of value for this question y=x²-2x-5

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book Other Question

Can someone help me sove this by using the square root property?
5^2=100
What is Quadratic inform method
how do you solve this:
(x^2+2x)^2-5(x^2+2x)+6=0

and

x^1/2-11x^1/4+30


How do you this Solve Equation

6x^3/5-24=0