exam Maths Puzzle Numerical Ability

Simplify:

X^2+5X+6 x X^2-5X+6
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X^2-4 X^2_9

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exam Other Question

Tell whether the line that passes through the two given points is parallel or perpendicular or neither to a line with a slope of -2.

(5,3),(7,-1)
(5,3),(7,-3)
(5,3),(7,4) 3r+1<4r+7