exam Maths Puzzle Numerical Ability

4xy+2y=9

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exam Other Question

part 1 regents questions are worth two points each. Shayne got 28 points on part2. what is the least number of questions he must get right on part1 to pass the regents? ( passing i Please help us find the Factor and show any formula that you used.

5cx2 + 10c2x - 15c3

Thank you for any help that you can give.