यदि (p(x)=kx-2+6x+9) और (p(-3)=0), तो (k) क्या है?
If (p(x)=kx-2+6x+9) and (p(-3)=0), what is (k)?
Explanation opens after your attempt
A. (1)
Concept
(p(-3)=9k-18+9=0), so (9k-9=0) and (k=1). Substitute the given zero to find the unknown coefficient.
Why this answer is correct
The correct answer is A. (1). (p(-3)=9k-18+9=0), so (9k-9=0) and (k=1). Substitute the given zero to find the unknown coefficient.
Exam Tip
(p(-3)=9k-18+9=0), इसलिए (9k-9=0) और (k=1)। दिए गए शून्य को रखकर अज्ञात गुणांक निकालें।
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