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Algebraic Expressions

Fill in the b...

Question

Fill in the blanks:
(ii) The sum of 8 and -3 = and the sum of 8ab and - 3ab =

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5ab

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Solution

Sum of 8 and -3 $= 8 + (- 3)$
$= 8 - 3$
$= 5$
Sum of 8ab and -3ab $= 8 a b + (- 3 a b)$
$= (8 - 3) a b$
$= 5 a b$

Hence, the sum of 8 and -3 is 5 and the sum of 8ab and -3ab is 5ab.

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