If x = √18 + √8, then what is the value of x²?
Show answer & explanation
Correct answer: A
Explanation
Given:
x = √18 + √8
According to the formula:
(a + b)² = a² + b² + 2ab
x² = (√18 + √8)²
= 18 + 8 + 2√(18 × 8)
= 26 + 2√144
= 26 + 24
= 50
SSC CHSL 2025 PYQ — Question 70
SSC CHSL - 29 Nov 2025 - Shift 3 • Quantitative Aptitude • Q70