(p(x)=9x-2+12x+4) में कौन सा मान शून्य है?
Which value is a zero of (p(x)=9x-2+12x+4)?
Explanation opens after your attempt
A. \(-\frac{2}{3}\)
Concept
(9x-2+12x+4=(3x+2)2), so the zero is \(x=-\frac{2}{3}\). Recognize the perfect square.
Why this answer is correct
The correct answer is A. \(-\frac{2}{3}\). (9x-2+12x+4=(3x+2)2), so the zero is \(x=-\frac{2}{3}\). Recognize the perfect square.
Exam Tip
(9x-2+12x+4=(3x+2)2), इसलिए शून्य \(x=-\frac{2}{3}\) है। पूर्ण वर्ग पहचानें।
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