exam
Maths Puzzle
Numerical Ability
Solve...
1.x^2=12
2.x^2-80=0
3.x^2+5=21
4.9x^2=14
5.(x-4)^2=3
6.(x+4)^2=4
7.5(x-2)^2=3
8.-9(x-3)^2=-7
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