2. Polynomials
medium

सत्यापित कीजिए कि दिखाए गए मान निम्नलिखित स्थितियों में संगत बहुपद के शून्यक हैं

$p(x)=(x+1)(x-2) ; x=-1,2$

Option A
Option B
Option C
Option D

Solution

If $x=-\,1$ and $x=2$ are zeroes of polynomial $p(x)=(x+1)(x-2),$ then $p(-1)$ and $p (2)$ should be $0$.

Here, $p (-1)=(-1+1)(-1-2)=0(-3)=0,$ and $p (2)$

$=(2+1)(2-2)=3(0)=0$

Therefore, $x=-1$ and $x=2$ are zeroes of the given polynomial.

Standard 9
Mathematics

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