Divide

$i .) - 40 x^{4}$ by $10 x^{2} y$

$i i .) 16 a^{2} b^{2} c^{2}$ by $8 a b$ [2 MARKS]

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Solution

Application: 1 Mark each

$(i) - 40 x^{4} b y 10 x^{2} y = \frac{- 40 x^{4}}{10 x^{2} y}$
$= - 4 x^{2} y^{- 1}$

$(i i) 16 a^{2} b^{2} c^{2} b y 8 a b = \frac{16 a^{2} b^{2} c^{2}}{8 a b}$
$= 2 a b c^{2}$

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$i .) 4 x^{3} + 6 x^{2} + 12 x$ by $2 x$

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$(i) (2.5 a - 0.5 b) a n d (4 b^{2} - 8 a b)$

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a^{2} b^{2} + 8 a b - 9

Q. Add

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and

b^{2} - 6 a b

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Divide i.)−40x4by 10x2y ii.) 16a2b2c2by 8ab [2 MARKS]

Application: 1 Mark each (i) −40x4 by 10x2y=−40x410x2y =−4x2y−1 (ii) 16a2b2c2 by 8ab=16a2b2c28ab =2abc2

Divide

$i .) - 40 x^{4}$ by $10 x^{2} y$

$i i .) 16 a^{2} b^{2} c^{2}$ by $8 a b$ [2 MARKS]

Application: 1 Mark each

$(i) - 40 x^{4} b y 10 x^{2} y = \frac{- 40 x^{4}}{10 x^{2} y}$
$= - 4 x^{2} y^{- 1}$

$(i i) 16 a^{2} b^{2} c^{2} b y 8 a b = \frac{16 a^{2} b^{2} c^{2}}{8 a b}$
$= 2 a b c^{2}$