ann0801ow4v2z ann0801ow4v2z
  • 12-08-2019
  • Mathematics
contestada

-2(-a-4) (-a + 4)=
Can you please explain the process, thanks

Respuesta :

9098837272 9098837272
  • 12-08-2019
First you look at the last two terms (-a-4)(-a+4). Since this a multiplication you multiply each components in the bracket with the other components of the bracket.

-a x -a -ax4 -4x-a -4x4
= a^2 -4a +4a -16
= a^2 -16


Now multiply by -2 and you get -2a^2+32

Hope that helps
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