Algebra

Quantitative Aptitude and Numerical Ability (DRDO) (Phase-i and II)

Title

45:30

Video Progress

8 of 24 completed

Notes Progress

5 of 15 completed

MCQs Progress

38 of 100 completed

Subjective Progress

8 of 20 completed

Continue to Next Topic

Indian Economy - Understanding the basics of Indian economic system

Download Solution PDF

If x = √3 + √4 + √5 than x⁴ – 8x³ + 8x² + 32x = ?

36

29

44

52

Explanation:

x = √3 + √4 + √5
x – 2 = √3 + √5
x² – 4x + 4 = 8 + 2 √15
x² – 4x – 4 = 2√15
x⁴ + 16x² + 16 – 8x³ + 32x – 8x² = 60
x⁴– 8x³ + 8x² + 32x = 44

Profile ResourcesReport error