Question

(3a+4b) (a-b)=3a^2-4a^2 find error and say process?

Answer 1

this is wrong. this is the process:-
3a (a-b) + 4b (a-b)
3a^2 - 3ab + 4ab - 4b^2
3a^2 + ab - 4b^2 is the correct answer

Answer 2

(3a+4b)(a-b)=3a^2+ab-4b^2

Hope this ans is right

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