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what is the factor of 28a^3+1-9a^2 (i)3a+1 (ii)3a-1 (iii)4a+1 (iv)4a-1​

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what is the factor of 28a^3+1-9a^2 (i)3a+1 (ii)3a-1 (iii)4a+1 (iv)4a-1​

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Ruby

Find the value of Dx, for solving the simultaneous equations

3x + 4y = 8; x – 2y = 5 by Cramer’s rule.​

1. In the given fig, if lines AB and CD intersect at 0,
AOC = (3x – 10)º and
BOD = (20° – 2x),
Find x.​

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