Question

I will give 5 stars for this !
25 ab + 4 ba​

Answer 1

Answer:

29ab

Explanation:

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Answer 2

Answer:

29 ab = 29 ba

Explanation:

ab = ba

then:

25 ab + 4 ba = 25 ab + 4 ab = (25 + 4) ab = 29ab = 29ba