exam Maths Puzzle Numerical Ability

1)what are all solutions of
x^2+8x-6=0

2) what are all solutions of
3/4(x+1)^2=9

3) what are all solutions of
2/3(x-3)^2=4

4) What quadratic function represents a por

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exam Other Question

I am having difficulty with this problem. Here is what I did but the answer is not correct and I do not know what I am doing wrong. I looked up the problem to make sure that I have If E is the set of even intergers, P is the set of positive integers, and F is the set of integers less than 5, which of the following integers will be in all three sets?

(A) 6
(B) 4
(C) 1
(D) 0
(E) -2