If a = 7, b = 5, then the value of a3 – b3 + 3a2b is · ABC26GN0955

Subject: General Aptitude · Chapter: Simplification

If a = 7, b = 5, then the value of a3 – b3 + 3a2b is

(a)218

(b)307

(c)735

(d)953

Answer

Answer (as printed): D

Explanation

a3 – b3 + 3a2b = 73 – 53 + 3 × 72 × 5 = 343 – 125 + 735 = 953.

Explanation as extracted from the printed page; notation may be imperfect.

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