If a − b = 5 and ab = 25, then the value of a3 − b3 is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 500 .
a3 − b3 = (5)3 + 3×25×5 = 125 + 375 = 500
SSC Selection Post - Higher Secondary Level - 25 June 2024 - Shift 2 • Quantitative Aptitude • Q60
If a − b = 5 and ab = 25, then the value of a3 − b3 is:
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 500 .
a3 − b3 = (5)3 + 3×25×5 = 125 + 375 = 500