anonymous
  • anonymous
Unit 6 Rational Expression Multiply. (a - 4) x 2a a^2 - 4a (a + 3)(a - 1) A. 2a^2 a - 1 B. 2 a - 1 C. 2a a + 1 D. 2a 2 - 1
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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geerky42
  • geerky42
Can you take screenshot of problem? Because it's hard to read here...
anonymous
  • anonymous
I can't it doesn't work I will trying and use equation
geerky42
  • geerky42
Why doesn't screenshot work? What computer are you using?/

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anonymous
  • anonymous
\[\frac{ (a - 4) }{ a^2 - 4a } x \frac{ 2a }{ (a + 3)(a - 1) }\]
geerky42
  • geerky42
You can factor \(a^2-4a\), just factor \(a\) out; \[a^2-4a\quad\Longrightarrow\quad a(a-4)\]
geerky42
  • geerky42
So you have \[\frac{ (a - 4) }{ a(a - 4) } \times \frac{ 2a }{ (a + 3)(a - 1) }\]
anonymous
  • anonymous
okay so next is to cross out (a - 4)
geerky42
  • geerky42
\[\frac{ \cancel{(a - 4)} }{ a\cancel{(a - 4)} } \times \frac{ 2a }{ (a + 3)(a - 1) }\]\[\dfrac{1}{a}\times\frac{ 2a }{ (a + 3)(a - 1) } \]
geerky42
  • geerky42
You can also cancel a out.
geerky42
  • geerky42
\[\dfrac{1}{\cancel a}\times\frac{ 2\cancel a }{ (a + 3)(a - 1) } \]
geerky42
  • geerky42
Now you are left with \(\dfrac2{(a+3)(a-1)}\)
anonymous
  • anonymous
okay cool I didn't know that
geerky42
  • geerky42
That's weird, it's not in options.
geerky42
  • geerky42
Or is it?
anonymous
  • anonymous
I don't know it doesn't show in my text book
geerky42
  • geerky42
What computer are you using?
anonymous
  • anonymous
HP
geerky42
  • geerky42
Then there should be PrtScr on your keyboard, right? you can take screenshot by press that
geerky42
  • geerky42
then open MS paint and paste
anonymous
  • anonymous
I know that but I broke the button
geerky42
  • geerky42
ah okay.
geerky42
  • geerky42
well, I don't know what to do from here, sorry.
anonymous
  • anonymous
it okay thanks for your help

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