\(x^4-25x^2+144=0\) में \(y=x^2\) रखने पर कौनसा समीकरण मिलेगा?
If \(y=x^2\) is put in \(x^4-25x^2+144=0\), which equation is obtained?
Explanation opens after your attempt
A. \(y^2-25y+144=0\)
Concept
Since (x-4=\(x^2\)2=y-2), the new equation is \(y^2-25y+144=0\). In exams, use substitution to form a quadratic.
Why this answer is correct
The correct answer is A. \(y^2-25y+144=0\). Since (x-4=\(x^2\)2=y-2), the new equation is \(y^2-25y+144=0\). In exams, use substitution to form a quadratic.
Exam Tip
क्योंकि (x-4=\(x^2\)2=y-2), इसलिए नया समीकरण \(y^2-25y+144=0\) है। परीक्षा में प्रतिस्थापन से द्विघात रूप बनाएं।
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