exam Maths Puzzle Numerical Ability

polynomial division :

8x^2+6x-4 divide by -x


i got : -8x-6-4 = -8x-10 <<is this correct? thks :D

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exam Other Question

-3 - square root of 18 / -6

sorry i do not know how to place the square root sign in so i wrote it out.
On a drawing with a scale of 1/8 in, 1 ft, a window is 3/4 in. wide. What is the actual width of the window? How would you get the answer?