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I. ` 20x^(2) + 9x+1 = 0" "` II. `30y^(2) + 11y + 1= 0`A. If ` x lt y`B. If `x gt y`C. If ` x le y`D. If`x ge y` |
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Answer» Correct Answer - C I. ` 20x^(2)+ 9x+1 = 0` ` rArr 20x^(2) + 5x+ 4x+ 1 = 0` ` rArr 5x(4x+1)+1(4x+1) = 0` ` rArr (4x+1)(5x+1) = 0` ` rArr x = - 1/4 or - 1/5` II. ` 30y^(2) + 11y + 1 = 0` ` rArr 30y^(2)+ 6y+ 5y + 1 = 0` ` rArr 6y(5y+1)+1(5y+1) = 0` ` rArr (5y+1) ( 6y+1) = 0` ` rArr y =- 1/5 or - 1/6` Clearly, ` x le y` |
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