If roots are 7 and 12 then which quadratic equation is correct?
यदि roots 7 और 12 हैं तो quadratic equation कौन सी होगी?
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Correct Answer
A. x² - 19x + 84 = 0 / x² - 19x + 84 = 0
ExplanationStep 1: From roots the equation is x² - (sum)x + product = 0. Step 2: Sum is 19 and product is 84 so x² - 19x + 84 = 0. Step 3: First find sum and product of roots.
Step 1: Roots से equation x² - (sum)x + product = 0 बनती है। Step 2: sum 19 और product 84 है इसलिए x² - 19x + 84 = 0। Step 3: पहले roots का sum और product निकालें।