Gavriella
Gavriella Gavriella
  • 15-08-2018
  • Mathematics
contestada

Please help, calculators wont work for the problem.
(a ­ - 2b)^2

Respuesta :

ellaineirizarrp3nwkg ellaineirizarrp3nwkg
  • 15-08-2018
a-2b
× a-2b
[tex] {a}^{2} - 4ab + {4b}^{2} [/tex]
Answer Link
rss13 rss13
  • 15-08-2018

[tex] ={ (a + 2b)}^{2} \\ = {a}^{2} + (2 \times 2b \times a) + {( - 2b)}^{2} \\ = {a}^{2} + 4ab + ({ - 2}^{2} \times {b}^{2} ) \\ {a}^{2} + 4ab + 4 {b}^{2} [/tex]
Answer Link

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