253,102 views
21 votes
21 votes
If x= -2, the value of the expression 3x² - 5x +1/x is​

User Julien Dubois
by
2.0k points

2 Answers

23 votes
23 votes
According to my calculations, the answer is 43/2. Though I am not entirely sure.
User Roheen
by
2.7k points
23 votes
23 votes


\huge\text{Hey there!}


\mathsf{(3x^2 - 5x + 1)/(x)}\\\\\mathsf{= (3(-2)^2 - 5(-2) + 1)/(-2)}\\\\\mathsf{= ((3)(4) - (5)(-2)+1)/(-2)}\\\\\mathsf{= (12 - (5)(-2)+1)/(-2)}\\\\\mathsf{= (12 - (-10) + 1)/(-2)}\\\\\mathsf{= (12 + 10 + 1)/(-2)}\\\\\mathsf{= (22 + 1)/(-2)}\\\\\mathsf{= (23)/(-2)}\\\\\mathsf{-11 (1)/(2)}\\\\\\\\\huge\text{Thus, your answer should be: \boxed{\mathsf{-11(1)/(2)}}}\huge\checkmark


\huge\text{Good luck on your assignment \& enjoy your day!}

~
\frak{Amphitrite1040:)}

User Kenju
by
2.7k points