dishonnabrownpcn6i2 dishonnabrownpcn6i2
  • 01-04-2020
  • Mathematics
contestada

Multiply (5a+7)(5a-7)

Multiply 5a75a7 class=

Respuesta :

Milanifaye
Milanifaye Milanifaye
  • 01-04-2020

Answer:

25a^2-49

Step-by-step explanation:

1)use FOIL

F=first

O=out

I=inside

L=last

5a*5a+5a*-7+7*5a*7*-7

25a^2-35a+35a-49

25a^2-49

Hope this helps!

Answer Link
latoriab
latoriab latoriab
  • 01-04-2020
=25a^2-49
Steps
1)Simplify:(5a)^2-7^2
2)evaluate:25a^2-49
Answer Link

Otras preguntas

El recado elena poniatowska ¿Qué estructura le da la autora?
Sylvester is hired by the defense to help select the jurors who would be less likely to convict
With a parrelleogram how would you find the area with a base of 4yd and a height of 1.5yd???
Compare and contrast british ideas of kingship before and after the glorious revolution. what was the most important change brought about by the event of 1688 a
Chemical changes sometimes produce a gas which you can detect by observing
PLEASE HELP!! (x-7)^3 (x+2)^2 (x-13) <0
Your heart pumps 3784 L of blood per day. How many gallons is that?
Need help with problem 26.
What physical feature separates the italian peninsula from the holy roman empire?
can someone please help me so I don't fail and explain