missdivavia missdivavia

02-10-2017
Mathematics

contestada

[tex] \sqrt{26x+13} = x+7[/tex]

Respuesta :

lucyfiennes lucyfiennes

02-10-2017

√26+13 ² = (x+7)²
26x + 13 = X² +14X + 49
26X +13 - X² -14X - 49 = 0
12X - X² - 36 = 0
-(X²-12X+36) = 0
-(X-6)² = 0
(X-6)² = 0
X-6 = 0
X= 6

Answer Link

Otras preguntas

SHE MEANT LIGHT NOT LIFE :)

DDT, an insecticide banned in the United States for most uses, has the formula C14H9Cl5. Find its percent composition.

Can someone give the answer for the number pattern, I am struggling. Please!

Describe one of mussolini's economic goals

True or False. Evolution can take place when a population is not in a state of genetic equilibrium- thus evolution may take place when there are genetic mutati

If a firm produces nothing which of the following costs will be zero?

Trade increased as a result of the Crusades, introducing new products to Europe. True False

True/False At some point in time, you will have to pay for expenses that your family once paid for.

what are algebra tiles?

Charts, time lines, web diagrams, and Venn diagrams are examples of _____