exam Maths Puzzle Numerical Ability

2x²+26=-10

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exam Other Question

Solve by quadratic Equation.
3x^2-6x+2=0

Please explain.
Please help me with these problems.I cant figure them out.

SIMPLIFY EACH OF THE FOLLOWING.BEGIN WITH THE INNERMOST PARENTHESES.


1). (8x-y)-[-(2x + y)-(3x-6y)]


2). 6