किस द्विघात समीकरण में मूलों का योग (-8) और गुणनफल (15) है?
Which quadratic equation has sum of roots (-8) and product (15)?
Explanation opens after your attempt
A. \(x^2+8x+15=0\)
Concept
\(A monic equation is (x^2-(\)sum)x+product\(=0). Substituting sum (-8) gives (x^2+8x+15=0).\)
Why this answer is correct
\(The correct answer is A. (x^2+8x+15=0). A monic equation is (x^2-(\)sum)x+product\(=0). Substituting sum (-8) gives (x^2+8x+15=0).\)
Exam Tip
\(मोनिक समीकरण (x^2-(\)योग)x+गुणनफल=0) होता है। \(योग (-8) रखने पर (x^2+8x+15=0) मिलता है\)।
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