Queenofmax03
Queenofmax03 Queenofmax03
  • 25-11-2019
  • Mathematics
contestada

Multiply (2 – 71)(-1 + 47)

Multiply 2 711 47 class=

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sarah6572
sarah6572 sarah6572
  • 25-11-2019
(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

:)
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Noodl3s14
Noodl3s14 Noodl3s14
  • 25-11-2019
Will this help? You can only Multiply the Same variables. I need to sleep now :)
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