Expand: (5x − 3)² = ?
Show answer & explanation
Correct answer: D
Explanation
(5x − 3)²
According to the formula:
(a − b)² = a² − 2ab + b²
= (5x)² − 2(5x)(3) + (3)²
= 25x² − 30x + 9
SSC CPO 2025 PYQ — Question 112
SSC CPO - 11 Dec 2025 - Shift 2 • Quantitative Aptitude • Q112