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JEE · NEET Previous Year Question

$The value of (A + B) \times (A - B) is$

Topic: NEET PYQ

Answer: D. Full step-by-step solution below.

A $0$
B $A^{2} - B^{2}$
C $B \times A$
D $2 (B \times A)$

Correct answer: D

Solution

(d) (A + B) \times (A - B) = (A \times A) - (A \times B) + (B \times A) - (B \times B) = 0 - (A \times B) - (A \times B) - 0 = - 2 (A \times B) = 2 (B \times A)

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