Question

if the sum of the roots of the equation
(m + 1) x² + 2x +3=0 is 1 then m=​

Answer 1

Answer:

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Answer 2

$\huge{\underline{\tt Solution:-}}$

Here

• a=m+1
• b=2
• c=3

we know that

$\boxed{\sf Sum\:of\:roots=\dfrac{-b}{a}}$

$\\ \tt \hookrightarrow \: \dfrac{-2}{m+1}=1$

$\\ \tt \hookrightarrow \: -2=1(m+1)$

$\\ \tt \hookrightarrow \: -2=m+1$

$\\ \tt \hookrightarrow \: m+1=-2$

$\\ \tt \hookrightarrow \: m=-2-1$

$\\ \tt \hookrightarrow \: \underline{\boxed{\bf m=-3}}$