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```
Let 'f' be a polynomial such that f(x2-1)=x4-4.Find f(x2+2).

```
10 years ago

## Answers : (1)

419 Points
```							Dear Nikhil
f(x2-1)=(x2)2 - 22 = (x2+2)(x2-2)= (x2-1+3)(x2-1-1)
f(x)=(x+3)(x-1)
f(x2+2)=(x2+2+3)(x2+2-1)=(x2+5)(x2+1)=x4+6x2+5

All the best.
AKASH GOYAL

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10 years ago
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• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions