dishonnabrownpcn6i2 dishonnabrownpcn6i2

01-04-2020
Mathematics

contestada

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

Multiply 5a75a7 class=

Respuesta :

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

01-04-2020

=25a^2-49
Steps
1)Simplify:(5a)^2-7^2
2)evaluate:25a^2-49

Answer Link

Otras preguntas

What factors led to the revival of trade in europe?

From a point on a circle, two perpendicular chords are drawn. One is 6 cm from the center and the other one is 3 cm from the center. Find the lengths of these c

At Noise Pollution Cellular, plan A is $30.00 per month and $5.00 for every gigabyte of data. Plan B is $50.00 per month and $2.00 for every gigabyte of data us

Billy is 4 years old. he has a big box of legos, and his mother asks him to give her 5 legos from the box. he has trouble deciding how many to give her so he ta

the length of this prism is multiplied by a scale factor of 1/2 to create rectangular prism B the volume of rectangular prism B is and I need work to

Experimental research is primarily a hypothesis-testing method. a. True b. False

Which is the BEST estimation of 9 ? A) between 2 and 2.1 B) between 1.5 and 2 C) between 2.1 and 2.2 D) between 2.3 and 2.4

Is an insoluble solid that forms from two solution?

With u.s. aid, salvador allende of chile was replaced by military dictator __________.

Give three numbers whose product is about 9,000