MCQ
$(a - b)^2$ is equal to:
- A$a^2 + b^2 + 2ab$
- B$2ab$
- ✓$a^2 + b^2 - 2ab$
- D$a^2 + ba^2$
✓
Answer
Correct option: C.
$a^2 + b^2 - 2ab$
C. $a^2 + b^2 - 2ab$
Solution:
By algebraic identity,
$(a + b)^2 = a^2 + b^2 - 2ab$
Solution:
By algebraic identity,
$(a + b)^2 = a^2 + b^2 - 2ab$
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