(√8 + √2)² + (√8 − √2)² = ?
Show answer & explanation
Correct answer: D
Explanation
Given:
(√8 + √2)² + (√8 − √2)²
Using the formula:
(a + b)² + (a − b)² = 2(a² + b²)
= 2(8 + 2)
= 2 × 10
= 20
SSC MTS - 17 Feb 2026 - Shift 1 • Quantitative Aptitude • Q11
(√8 + √2)² + (√8 − √2)² = ?
Correct answer: D
Explanation
Given:
(√8 + √2)² + (√8 − √2)²
Using the formula:
(a + b)² + (a − b)² = 2(a² + b²)
= 2(8 + 2)
= 2 × 10
= 20