यदि (x=-3), बहुपद (p(x)=x-2+kx-18) का शून्य है, तो (k) क्या है?

If (x=-3) is a zero of (p(x)=x-2+kx-18), what is (k)?

Explanation opens after your attempt
Correct Answer

A. (-3)

Step 1

Concept

(p(-3)=9-3k-18=0), so (-3k=9) and (k=-3). When a zero is given, set the polynomial value equal to (0).

Step 2

Why this answer is correct

The correct answer is A. (-3). (p(-3)=9-3k-18=0), so (-3k=9) and (k=-3). When a zero is given, set the polynomial value equal to (0).

Step 3

Exam Tip

(p(-3)=9-3k-18=0), इसलिए (-3k=9) और (k=-3)। शून्य दिए होने पर बहुपद का मान (0) रखें।

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Mathematics Answer, Explanation and Revision Hints

यदि (x=-3), बहुपद (p(x)=x-2+kx-18) का शून्य है, तो (k) क्या है? / If (x=-3) is a zero of (p(x)=x-2+kx-18), what is (k)?

Correct Answer: A. (-3). Explanation: (p(-3)=9-3k-18=0), इसलिए (-3k=9) और (k=-3)। शून्य दिए होने पर बहुपद का मान (0) रखें। / (p(-3)=9-3k-18=0), so (-3k=9) and (k=-3). When a zero is given, set the polynomial value equal to (0).

Which concept should I revise for this Mathematics MCQ?

(p(-3)=9-3k-18=0), so (-3k=9) and (k=-3). When a zero is given, set the polynomial value equal to (0).

What exam hint can help solve this Mathematics question?

(p(-3)=9-3k-18=0), इसलिए (-3k=9) और (k=-3)। शून्य दिए होने पर बहुपद का मान (0) रखें।