Math, asked by Sanskarkumar, 1 year ago

Factorise : x^3-5x^2-x+5

Answers

Answered by MaheswariS
4

\underline{\textbf{Given:}}

\mathsf{x^3-5x^2-x+5}

\underline{\textbf{To find:}}

\textsf{Factors of}\;\mathsf{x^3-5x^2-x+5}

\underline{\textbf{Solution:}}

\mathsf{Consider,}

\mathsf{x^3-5x^2-x+5}

\textsf{This can be written as}

\mathsf{=x^2(x-5)-1(x-5)}

\mathsf{=(x^2-1)(x-5)}

\mathsf{=(x^2-1^2)(x-5)}

\mathsf{Using\;the\;identity}

\boxed{\mathsf{a^2-b^2=(a-b)(a+b)}}

\mathsf{=(x-1)\;(x+1)\;(x-5)}

\implies\boxed{\mathsf{x^3-5x^2-x+5=(x-1)\;(x+1)\;(x-5)}}

\underline{\textbf{Find more:}}

1.x^2-(a-1/a)x+1 factorise the following  

https://brainly.in/question/4301404

2.Factorise x^4-(x-z)^4​  

https://brainly.in/question/14993176

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