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Question
123x2y – 138x2y is a like term of ______.
Options
10xy
–15xy
–15xy2
10x2y
Solution
123x2y – 138x2y is a like term of `bb(underline(10x^2y))`.
Explanation:
123x2y – 138x2y = (123 – 138)x2y
= –15x2y
Therefore, –15x2y is a like term of 10x2y, because both contain x2y.
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