Algebra

Quantitative Aptitude (CUET)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

The quantity which must be added to (1 – x) (1 + x²) to obtain x³ is:

2x³ + 3x² + x + 1

2x³ + x² + x – 1

2x³ – x² + x – 1

–x² + x – 1

f(x) = (1 – x)(1 + x²) = 1 + x² – x – x³
So, 2x³ – x² + x – 1 is added to 1 + x² – x – x³ to obtain x³.