3. Which of the following is correct?
(a) (a - b) = a + 2ab-b?
(b) (a - b)? = a - 2ab + b
(c) (a - b)? = ab
(d) (a + b) = (a + 2ab-ba
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Answer:
OPTION B IS CORRECT THAT IS (A-B)=A-2AB+B
Step-by-step explanation:
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