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23 votes
Can someone please help me factor this

Can someone please help me factor this-example-1
User TomServo
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1 Answer

6 votes
6 votes

Answer:


\huge\boxed{\bf\:1}

Explanation:


\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } * \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }

Take
\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } & factorise it at first.


\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \\= (\left(x-3\right)\left(x-1\right))/(\left(x-4\right)\left(x-3\right))\\= (x-1)/(x-4)

Now factorise the next set :
\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }.


\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= (\left(x-4\right)\left(x+6\right))/(\left(x-1\right)\left(x+6\right))\\= (x-4)/(x-1)

Now, multiply the two simplified results.


\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } * \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= (x-1)/(x-4)* (x-4)/(x-1) \\= (\left(x-1\right)\left(x-4\right))/(\left(x-4\right)\left(x-1\right)) \\= \boxed{\bf\: 1}


\rule{150pt}{2pt}

User Karan Verma
by
3.0k points