Page 8 - Digi Notes - MATHS - 18.03.2016
P. 8
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2
2
I. x + 5x + 6 = 0 II. y + 3y + 2 = 0
2
I. x + 3x + 2x + 6 = 0
x (x + 3) +2 (x +3) = 0
(x +2) (x + 3) = 0
x = -2, -3
2
II. y + 2y +y + 2 = 0
y (y +2) +1 (y +2) = 0
(y+1) (y+2) = 0
y = -1, -2
x < y
2
2
I. x - 10x + 24 = 0 II. y - 9y + 20 = 0
2
I. x - 6x - 4x + 24 = 0
x (x - 6) -4 (x -6) = 0
(x -6) (x -4) = 0
x = 6, 4
2
II. y - 5y - 4y + 20 = 0
y (y - 5) -4 (y - 5) = 0
(y - 5) (y - 4) = 0
y = 4, 5
x > y
Page 8 of 12
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2
2
I. x + 5x + 6 = 0 II. y + 3y + 2 = 0
2
I. x + 3x + 2x + 6 = 0
x (x + 3) +2 (x +3) = 0
(x +2) (x + 3) = 0
x = -2, -3
2
II. y + 2y +y + 2 = 0
y (y +2) +1 (y +2) = 0
(y+1) (y+2) = 0
y = -1, -2
x < y
2
2
I. x - 10x + 24 = 0 II. y - 9y + 20 = 0
2
I. x - 6x - 4x + 24 = 0
x (x - 6) -4 (x -6) = 0
(x -6) (x -4) = 0
x = 6, 4
2
II. y - 5y - 4y + 20 = 0
y (y - 5) -4 (y - 5) = 0
(y - 5) (y - 4) = 0
y = 4, 5
x > y
Page 8 of 12
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