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The square root of (7 + 35) (7 – 35) is

/ Aptitude, Square Root And Cube Root / By
Question:
The square root of (7 + 35) (7 – 35) is
[A].

5

[B].

2

[C].

4

[D].

35

Answer: Option B

Explanation:

(7 + 35)(7 – 35) = (7)2 – (35)2  = 49 – 45  = 4  = 2.