Page 7 - Digi Notes - MATHS - 18.03.2016
P. 7
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2
2
I. 17x +48x = 9 II. 13y = 32y-12
2
I. 17x + 51x –3x–9 = 0
17x (x+3) –3 (x+3)=0
x = –3,
2
II. 13y – 26y–6y+12=0
13(y–2) –6 (y–2) = 0
y = 2,
x
2
2
I. x - 5x + 6 = 0 II. y - 9y + 20 = 0
2
x - 5x + 6 = 0
(x - 2) (x - 3) = 0
x = 2 or 3
2
II. y - 9y + 20 = 0
(y - 4) (y - 5) = 0
y = 4 or 5
x < y
2
2
I. x — 11x + 24 = 0 II. 2y - 9y + 9 = 0
2
I. x - 11x +24 = 0
2
x -8x - 3x + 24 = 0
x (x -8) -3 (x -8) = 0 x = 8, 3
2
II. 2y - 9y + 9 = 0
2
2y - 6y - 3y + 9 = 0
2y (y -3) -3 (y -3) = 0
(y -3) (2y -3) = 0
y = 3,
Page 7 of 12
www.mahendraguru.com
2
2
I. 17x +48x = 9 II. 13y = 32y-12
2
I. 17x + 51x –3x–9 = 0
17x (x+3) –3 (x+3)=0
x = –3,
2
II. 13y – 26y–6y+12=0
13(y–2) –6 (y–2) = 0
y = 2,
x
2
2
I. x - 5x + 6 = 0 II. y - 9y + 20 = 0
2
x - 5x + 6 = 0
(x - 2) (x - 3) = 0
x = 2 or 3
2
II. y - 9y + 20 = 0
(y - 4) (y - 5) = 0
y = 4 or 5
x < y
2
2
I. x — 11x + 24 = 0 II. 2y - 9y + 9 = 0
2
I. x - 11x +24 = 0
2
x -8x - 3x + 24 = 0
x (x -8) -3 (x -8) = 0 x = 8, 3
2
II. 2y - 9y + 9 = 0
2
2y - 6y - 3y + 9 = 0
2y (y -3) -3 (y -3) = 0
(y -3) (2y -3) = 0
y = 3,
Page 7 of 12
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