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If $x^2+14x+10=0$, which form is correct by completing square?यदि $x^2+14x+10=0$, तो वर्ग पूर्ण करके कौन-सा रूप सही है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: $x^2+14x+10=(x+7)^2-39$$x^2+14x+10=(x+7)^2-39$
To complete the square, take $x^2+14x+10$. Add and subtract $(\frac{14}{2})^2=7^2=49$:
$\;x^2+14x+10=(x^2+14x+49)+10-49=(x+7)^2-39$.वर्ग पूर्ण करने के लिए $x^2+14x+10$ लें। $(\frac{14}{2})^2=7^2=49$ को जोड़कर और घटाकर करें:
$\;x^2+14x+10=(x^2+14x+49)+10-49=(x+7)^2-39$.
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