Page 110 - Grade 10 C.Math

= (x + 13) – 16x 2
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= (x + 13 + 4x) (x + 13 – 4x)
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= (x + 4x + 13) (x – 4x + 13)
bf];|f] cleJo~hs = x + 4x + 13x
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= x(x + 4x + 13)
Curriculum Development Centre
2
t];|f] cleJo~hs = x + x(x + 13) + 3x 2
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= x(x + x + 13 + 3x)
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= x(x + 4x + 13)
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n=;= = ;femf u'0fg v08 x afFsL u'0fg v08x¿
= (x + 4x + 13) x(x – 4x + 13)
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= x(x + 4x + 13) (x – 4x + 13)
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cEof; 8.2

n3'Ttd ;dfkjTo{ -n=;_ lgsfNg'xf];\ M

(1) x + 4 / 2x – 4x + 4x (2) x + 8 / x – 2x + 4x
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(3) x – 1, x – x + x / x + x + 1 (4) x + 2ax + a x / x + ax + b x
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x x
(5) y + (2b – a )y + b / y – ay + b y (6) /
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x x
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(7) x   x  / x   (8) x – 5x y + 4y , x + 8y / x – 8y 3
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2 2
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x x x
(9) x + 64y , 2x + 8x y + 16xy / x – 4x y + 8xy 2
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(10) x + 4y , x + 2x y + 2xy / x – 2x y + 2xy 2
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(11) x – 64, x + 4x + 16x / 4x + 16x + 64
(12) x + 9x + 81, 3x + 9x + 27 / x + 27
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(13) x + 8x + 144, x + x(x + 12) + 3x / x + 12x + 4x 2
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(14) x – 8x + 196, x + x(x+14) + 5x / 2x + 12x + 28
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(15) a + 2ab + b – c , b + 2bc + c – a / c + 2ac + a – b 2
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(16) x – 6x y + y , x + 2x y – xy / x y – 2xy – y 3
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(17) x + x + 1, x – 1 / x – 1 (18) x – 16x , x + 6x + 8x / x + 8x + 16x 2
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(19) x + 4x + 16, x + 2x + 4x / x – 8 (20) x – 4x + 12x, x + 8x + 144
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107 ul0ft, sIff – 10