torreswendy1402 torreswendy1402
  • 02-08-2017
  • Mathematics
contestada

Solve by taking square roots: x^2 - 40 = 9

Respuesta :

deku
deku deku
  • 02-08-2017
To solve for x^2 - 40 = 9, take the square roots of both sides and solve.
The answer is x = 7, -7.
Answer Link
Аноним Аноним
  • 02-08-2017
[tex] x^{2} -40= 9[/tex]

[tex] x^{2} = 49[/tex]

[tex] \sqrt{ x^{2} } = \sqrt{49} [/tex]

x = +7 or -7
Answer Link

Otras preguntas

Why do we use granite?
what is the negative of -1/3 and why??
what is greater 0.7 or 7/9?
Bethany's dog eats 450 grams of food per day. How many kilograms does the dog eat in a week
Examples of cultural diffusion in ancient Rome pertaining to government
What are preventable injuries and unpreventable injuries
I am two numbers, the sum of my numbers is 100, the difference between my two numbers is 30,
Before the Civil War, the cotton plantations of the ___ South depended on British textile companies for their markets.A.antebellumB.anteriorC.avant-garde
what was the first industry to be regulated by the united states goverment?                                               a. oil   b.meat packing  c. steel  D.
What is the Difference between Research and Investigation???