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How many like terms of $2 a^{2} b$ are in this list: $5 a^{2} b, - a b^{2}, b a^{2}, 2 ab, - 7 a^{2} b$ ?

Class 8Adding and Subtracting ExpressionsAlgebra

A4
B1
C2
D3

Step-by-Step Solution

Like terms of

a^{2} b : 5 a^{2} b, b a^{2}

(same as

a^{2} b

) and

- 7 a^{2} b . - a b^{2}

and

2 ab

have different powers. So 3.

Answer: D) 3

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