sybrenavv1 sybrenavv1
  • 27-02-2018
  • Mathematics
contestada

Simplify b ( a + b ) - a ( a - b ).
a^2 + 2 ab + b^2
a^2 - 2 ab + b^2
-a^2 + 2 ab + b^2
-a^2 - 2 ab - b^2

Respuesta :

RIAH222
RIAH222 RIAH222
  • 27-02-2018
the answer is -a^2+2ab+b^2
Answer Link
vicobusso
vicobusso vicobusso
  • 26-08-2019

Answer:

-a^2 + 2 ab + b^2

Step-by-step explanation:

To solve this, you need to distribute the letters into the parenthesis.

Then, you sum equal things, and you get the result.

[tex]b(a+b)-a(a-b)=\\ba + b^{2} -a^{2}  + ab=\\ b^{2} + 2ab -a^{2}[/tex]

So, the rigth answer is number three: -a^2 + 2 ab + b^2

Answer Link

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