x4+x2+25 factorise it?
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x⁴+x²+25
→ (x⁴+2x²+1)-x²+24
→ {(x²)²+2(x²)(1)+(1)²} - x² + 24
→ (x+1)² - x² + 24
→ [(x+1)² - (x)²] + 24
a²-b² = (a+b)(a-b)
→ (x+1-x)(x+1+x)+24
→ (x⁴+2x²+1)-x²+24
→ {(x²)²+2(x²)(1)+(1)²} - x² + 24
→ (x+1)² - x² + 24
→ [(x+1)² - (x)²] + 24
a²-b² = (a+b)(a-b)
→ (x+1-x)(x+1+x)+24
alpanachaurasia2002:
wrong answer
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The answer is in the attachment.
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