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Mathematics 14 Online
craftyrtyingle:

(2x-5)-(x-8)/(x+4)

ItzLily:

Simplify 8/x+4

craftyrtyingle:

just found my tablet, lemme write it better I , and show my steps so far

martai:

is this a test qui or homework

ItzLily:

Okay.

martai:

quiz*

craftyrtyingle:

|dw:1647279184472:dw|

craftyrtyingle:

its' homework

martai:

ok

ItzLily:

Yes (x-5)- 8/x+4

craftyrtyingle:

wait can i cancel out the x+4s before I simplify in the numerator?

ItzLily:

Did you Subtract a fraction from a whole?

craftyrtyingle:

yes, technically

ItzLily:

x - 5 (x - 5) • (x + 4) x - 5 = ————— = ————————————————— 1 (x + 4)

ItzLily:

It should look like this.

craftyrtyingle:

|dw:1647279447739:dw|

craftyrtyingle:

i multiplied the denominator (1) with x+4 so that I can end up adding them, idk, it was the lcm I think idk

craftyrtyingle:

hey, yould you help

Florisalreadytaken:

Well you were doing well but you seemed to screw up at the second image |dw:1647284898729:dw| you said it comes out as |dw:1647284979392:dw| which is wrong, and I believe because you didn't write it properly i am giving you a hint though this is how you should be doing it: okay so we have \( \boxed{\dfrac{2x-5(x+4) -(x-8)}{\left(x+4\right)}} \) try to finish it off!

Florisalreadytaken:

it's actually \( \dfrac{ \color{red}{\left( 2x-5\right)}\left(x+4\right)\:-\left(x-8\right)}{\left(x+4\right)} \) i forgot about that ^

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