75.6k views
0 votes
Solve equation by factoring n^2=5n-4

User Lesleyann
by
6.9k points

1 Answer

4 votes


\huge\text{Hey there!}


\huge\textbf{Equation:}


\mathsf{n^2 = 5n - 4}


\huge\textbf{Convert:}


\mathsf{5n - 4 = n^2}


\huge\textbf{Subtract }\boxed{\bf n^2}\huge\textbf{ to both sides:}


\mathsf{5x - 4 - n^2 = n^2 - n^2}


\huge\textbf{Simplify it:}


\mathsf{-n^2 + 5x - 4 = 0}


\huge\textbf{Factor the LEFT side of the equation:}


\mathsf{(-n + 1)* (n - 4) = 0}


\huge\textbf{Simplify that as well:}


\mathsf{-n + 1 = 0 \ or\ even\ \ n - 4 = 0}


\huge\textbf{Lastly, simplify that as well:}


\mathsf{n = 1\ or\ n = 4}


\huge\textbf{Therefore, your answer should be: }


\huge\boxed{\frak{n = 1\ or \ n = 4}}}\huge\checkmark


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

~
\frak{Amphitrite1040:)}

User Sjkm
by
7.0k points