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I. ` x^(2)+8x+15 = 0` II. ` y^(2) + 11y + 30 = 0`A. `x gt y `B. `x ge y`C. ` x lt y`D. ` x le y` |
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Answer» Correct Answer - B I. `x^(2) + 8x + 15 = 0` ` rArr x^(2) + 5x + 3x + 15 = 0` ` rArr x(x+5) + 3(x+5) = 0` ` rArr (x+5) ( x+3) = 0` ` rArr x =- 5 or -3` II. ` y^(2) + 11y + 30 = 0` ` rArr y^(2) + 6y+5y+30 = 0` ` rArr y(y+6) + 5 (y+6) = 0` ` rArr (y+5)(y+6) =0 ` ` rArr y =- 5 or - 6` Clearly, ` x ge y` |
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