Answer: 122
Step-by-step explanation:
Answer: No
Step-by-step explanation:

its exponents are;
a=1
b=2
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its exponents are;
a=2
b=1
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For them to be like terms, a = 1 and b = 2 or viceversa in both of them.
Answer: B. 12
Step-by-step explanation: Cause we have to subtract because let see 48+12=60 so we have to subtract each numbers with 12.