maths-9th

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{XXXXXXXXXXXX 0.000045 (3)-5 4X 5 3X -4 2X 4 ZX

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2 + (a - b)

2 (4)

5a4 - b

4 4X 2(a2+ b2) 3X a - 2a2b2+ b4 2X 4ab 1X

ZbZ!? x2+2x-24 (5)(x-3) (x+8) 4X (x+3) (x-8) 3X (x+6) (x-4) 2X (x-6) (x+4) 1X

ZWX a2- 4ab + 4b2 Zzg a3 - 8b3 (6) (a + 2b )

2 4X a + 2b 3X a2 + 2ab + b2 2X a - 2b 1X

iLX (7)

{ } 4X {-10} 3X {10} 2X {100} 1X

iLX 5 - 3x = -4 (8){9} 4X {3} 3X {1,3} 2X {-3} 1X

XXXXXXXXXXXXXg,~zZX (3, -4)` (9)4Xa 3X} 2Xzu} 1X

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0 4X 600 3X 450 2X 300 1X

%,zF,DX (12)

4XzZzg!* 3Xz 2X)z 1X!*

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4X7 3XZi~ 2X` 1Xz

[ziZztZzg|Z0+gziZztXXXXXXXXXiZzbDX (14)

4X)z 3Xz 2X_5.2. FEH~ 1X

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12,10,8 4X 10,8,6 3X 8,6,4 2X 6,4,2 1X

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36:::: zzzzzzzzxxxx

ZZZZbbbbZZZZYYYYiiii,,,,???? 9 ::::ggggzzzzffffssss~~~~ 2 ZZZZwwww

),g=\gzwi,? x - 2y = 1 3x + y = 10 Xi

4 - 3i , 2 + 3i q[x,? Xii

(0.04) (2.56) &+g=/i,X Xiii

7x,? a2 + b2 + c2 ab + bc + ca = 11 Zzg a + b + c = 6 Xiv

x4 + x

2 + 1 ~,? Xv

(x + 2) (x + 4) (x + 6) (x + 8) - 9 ~,? Xvi

x2 - 2x - 3 , x

2 - x - 6 &+g=ZWx,? Xvii

x6 - 2x

5 + 3x

4 - 2x

3 + x

2_.gx,? viii

XZZx,? 159 &tZZ ix

|5x - 13| + 2 = 14 iLx,? x

x + 4y - 5 , 2x + 3y = 0 &+g=/Zsi,? xi

iLx,? xii

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(10 , -2 ) , ( -7, 4 ) , ( 3, -5 ) :[%/x,XZkgZkV 3 Zw

:[zZHqzVo5zZ}IZi~ZzgM~Zk@*X 4 Zw

:[zZHqMV}IM(,Z@*? 5 Zw

X ABC :Zq-[ 6 Zw

m AB = 5cm , mBC = 4cm, m CA = 4.5cm