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Maths Puzzle
Numerical Ability
Factor:
7y^2 - yz - 4z + 28y
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book Other Question
I need the formula for:
1.) the sum of consecutive odd numbers from 1 to 42.
2.) the sum of consecutive odd numbers from 21 to 53.
3.) the sum of consecutive even numbers from
1. x^2 +2x-3/x^-x-12=x-5
2.3x/x-2 + 2x^2/x^2+5x+6 =4/x+3
3.x-3/x+2>=-4 x minus three divided by x plus 2 is greater than or equall to negative four
4.x<=6/x -5 x is less t