Page 6 - Digi Notes - MATHS - 18.03.2016
P. 6
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x>y
2
2
I. 16x + 20x + 6 = 0 II. 10y + 38 y + 24 = 0
2
I. 8x + 10x + 3 = 0
2
8x +4x+6x+3 = 0
4x(2x+1)+3(2x+1)=0
x =– , –
2
II. 5y + 19y+12=0
2
5y +15y+4y+12=0
5y(y+3)+4(y+3)=0
–
y=–3,
x>y
2
2
I. 18x +18x+4 = 0 II. 12y + 29y+ 14 = 0
2
I. 9x + 9x + 2 = 0
2
9x +6x+3x+2=0
3x(3x+2)+1(3x+2)=0
x = – , –
2
II. 12y + 21y+8y+14=0
3y(4y+7)+2(4y+7)=0
y=– , –
x>y
2
2
I. 8x + 6x = 5 II. 12y -22y+ 8 = 0
2
I. 8x +10x – 4x–5=0
2x(4x+5)–1(4x+5)=0
x = , –
2
II. 6y – 11y + 4 = 0
2
6y – 8y –3y + 4 =0
2y(3y–4)–1(3y–4)=0
y = ,
x
Page 6 of 12
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x>y
2
2
I. 16x + 20x + 6 = 0 II. 10y + 38 y + 24 = 0
2
I. 8x + 10x + 3 = 0
2
8x +4x+6x+3 = 0
4x(2x+1)+3(2x+1)=0
x =– , –
2
II. 5y + 19y+12=0
2
5y +15y+4y+12=0
5y(y+3)+4(y+3)=0
–
y=–3,
x>y
2
2
I. 18x +18x+4 = 0 II. 12y + 29y+ 14 = 0
2
I. 9x + 9x + 2 = 0
2
9x +6x+3x+2=0
3x(3x+2)+1(3x+2)=0
x = – , –
2
II. 12y + 21y+8y+14=0
3y(4y+7)+2(4y+7)=0
y=– , –
x>y
2
2
I. 8x + 6x = 5 II. 12y -22y+ 8 = 0
2
I. 8x +10x – 4x–5=0
2x(4x+5)–1(4x+5)=0
x = , –
2
II. 6y – 11y + 4 = 0
2
6y – 8y –3y + 4 =0
2y(3y–4)–1(3y–4)=0
y = ,
x
Page 6 of 12
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