Identify the like terms in the following-
$4 a b, 7 a, 8 b, - 3 a^{2} b^{2}, - 4 b a, - 50 b, - 75, 15 b^{2} a^{2}, - 7 a^{2}, 45, 150 a, 70 b a, 10 a^{2} b - 15 a b^{2}, 3 b a^{2}, - 21 a^{2}, 7 b^{2} a$

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Solution

Terms which are having the same variables that are raised to the same power are called the like terms. They may differ in their numerical coefficient.
So the like terms are-
$4 a b$ $- 4 b a$ $70 b a$
$7 a$ $150 a$ -
$- 3 a^{2} b^{2}$ $15 b^{2} a^{2}$ -
$8 b$ $- 50 b$ -
$- 75$ $45$ -
$- 7 a^{2}$ $- 21 a^{2}$ -
$10 a^{2} b$ $3 b a^{2}$ -
$- 15 a b^{2}$ $7 b^{2} a$ -

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