exam Maths Puzzle Numerical Ability

Simplify:
x^2-5x-6 divided by x^2-11x+30
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x^2-2x-3 x^2-x-20

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exam Other Question

anybody know how to simplify this expression?

16x^2 + 8x - 4 OVER 4

or: 16x^2 + 8x - 4 / 4

thanks for your help. I NEED it. :) 1. If your revenue is $10 million, your variable cost is $6 million, your fixed cost is $3 million, what is your contribution margin?

2. A project has an initial outflow of $1