1.

I.2x^(2) + 15x + 28 = 0""II. 2y^(2) + 13y + 21 = 0

Answer»

if`x gt y`
if`x ge y`
if `x lt y`
if ` x le y`

SOLUTION :I. `2x^(2) + 15x+28 = 0`
` 2x^(2) + 8x + 7x+28 = 0`
` 2x(x+4)+7(x+4) = 0`
` (2x+7) (x+4) = 0`
` x = (- 7/2) , -4`
II. ` 2y^(2) + 13y+21 = 0`
` 2y^(2) + 7y+6y + 21 = 0`
` y(2y+7)+3(2y+7) = 0`
` (y+3)(2y+7) = 0`
` y =- , (-7)/2`
` x le y`


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