Simplify the following expression.
49a2 + 70ab + 25b2
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. (5a + 5b)2.
49a2 + 70ab + 25b2
= (7a)2 + 2 × 7a × 5b + (5b)2
= (7a + 5b)2
SSC Selection Post 2024 PYQ — Question 63
SSC Selection Post - Higher Secondary Level - 26 June 2024 - Shift 2 • Quantitative Aptitude • Q63