book Maths Puzzle Numerical Ability

Please help me solve this equation: { { { -2x^2 - 4x - 2 } } }.

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book Other Question

the difference of the squares of two consecutive odd integers is 48. find the integers In the figure, ray XP and ray XT are opposite rays.
The measure of angle TXS=x+4, measure of angle SXR=3x+4, measure of angle RXP=2x+4. Find x and the measure of angle PXS.