aporiaqueen aporiaqueen

16-08-2019
Mathematics

contestada

How do you do factor x²-49?

Respuesta :

hoangpm04 hoangpm04

16-08-2019

Answer:

(x-7)*(x+7)

Step-by-step explanation:

49 can be factored as 7*7 = 7^2

x^2 - 49

= x^2 - 7^2

You also learned that a^2 - b^2 = (a-b) * (a+b), so in this case:

x^2 - 7^2 = (x-7) * (x+7)

So x^2 - 49 factored to become (x-7)*(x+7)

Hope this help you :3

Answer Link

Otras preguntas

In your upper body there is a muscle called

A reason Jamestown settlers struggled to survive was that they

21/4+55/6+32/3 simplify

When Grendel says Hrothgar's "warriors became hornets" (40), what literary device is being used?

The area of the top of a rectangular prism is 20 cm² . The area of the front is 16 cm² and the area of one side is 24 cm ² . What is the surface area of the rec

Which foreign troops helped defeat British forces at Yorktown?

The president a. can order the government to take private property in a national emergency. b. has a good deal of freedom in spite of checks and balances. c. ca

4 wings one tail what am i

3x^2-7x+4=0 solve for x. Write both solutions separated by a comma

Jackie Smith, a customer of Roger Blank, will pay only $190 for a tennis racket. Assuming Roger works on a 60% markup on the selling price, the most Roger will