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Rainbow [258]
3 years ago
5

Multiply (2 – 71)(-1 + 47)

Mathematics
2 answers:
Serhud [2]3 years ago
6 0
(2-7i)(-1+4i)
2x-1=-2
2x4i= 8i
-7ix-1=7i
-7ix4i=-28i^2

so the answer is
-2+8i+7i+28i^2
=28i^2+15i-2

:)
igomit [66]3 years ago
6 0
Will this help? You can only Multiply the Same variables. I need to sleep now :)

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Answer:

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Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

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From the question

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Now substitute this into the above equation

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Hope this helps you

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