Question

a = b
a² = ab
a²+a² = a²+ab
2a² = a²+ab
2a²-2ab = a²+ab-2a
2a²-2ab = a²-ab
2(a²- ab)=1(a²-ab)
2=1

Check where is the mistake.

Answer 1

2a^2 - 2ab =0

Step-by-step explanation:

since a = b, a^2 = ab

Answer 2

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Answer :

Mistake is in 5 th line

2a²-2ab= a²+ab-2a

↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑

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