curly290 curly290

18-10-2016
Mathematics

contestada

4x-4
4x-4
-7x
-7x
+___________ plz help

Respuesta :

apologiabiology apologiabiology

20-10-2016

ok so the question is about perimiter
the legnth is 4x-4 and width is -7x (eventhough having a negative dimention is impossible)

so

P=L+L+W+W
P=4x-4+4x-4-7x-7x
we can move terms since it is multiply
P=4x+4x-7x-7x-4-4
add
just add coefients
P=8x-14x-8
P=-6x-8
perimiter=-6x-8 which is illogical

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