lucysrv18
lucysrv18 lucysrv18
  • 03-04-2019
  • Mathematics
contestada

help me please asap!!!!!!

help me please asap class=

Respuesta :

maybeemmamay
maybeemmamay maybeemmamay
  • 03-04-2019

Answer:

4a^2-19ab-5b^2

Step-by-step explanation:

What you do is the FOIL process.

F=First. The first thing that you do is times 4a and a together to get 4a^2.

O=Outer. You multiply the outer numbers 4a and -5b together to get -20ab.

I=Inner. You multiply the inner numbers b and a together to get ab.

L=Last. You multiply the last numbers b and -5b together to get -5b^2.

Put it all together to get 4a^2-19ab-5b^2 as your answer.

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