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

What is the least common denominator for 5/6 and 3/8. 3/4 and 6/7
What is the amplitude of y=1/2 sin2x
The function of the eardrum in the middle ear is to
Mini-Project: Cents and the Central Limit Theorem 1. Collect a sample of at least 50 pennies by setting aside all the pennies you receive in change for severa
in the number 13,407.036 there are two 3's. Explain how the values of the 3's are related.
How do you?...Multiply out and simplify 10(2x-1)-20x?
how were north american colonies all similar in the 1700s?
you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot
what's another word for over thinking?
Why is sodium sulphate hemihydrate called as "Plaster of Paris"?