kobiquinn11
kobiquinn11 kobiquinn11
  • 21-05-2014
  • Mathematics
contestada

how do you solve 2x^2-32=0 using square roots? 

Please help!

Respuesta :

Lilith
Lilith Lilith
  • 21-05-2014
[tex]2x^2-32=0 \ \ / :2 \\ \\ x^2-16=0 \\ \\x^2-4^2 = 0 \\ \\ (x-4)(x+4)=0 \\ \\ x-4 = 0 \ \ or \ \ x+4 = 0\\ \\ x=4\ \ or \ \ x=-4[/tex]


Answer Link
kate200468
kate200468 kate200468
  • 21-05-2014
[tex]2x^2-32=0\\\\2(x^2-16)=0\ /:x^2-16=0\\\\x^2-4^2=0\\\\(x-4)(x+4)=0\\\\x-4=0\ \ \ \ or\ \ \ \ \ x+4=0\\\\x=4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=-4[/tex]
Answer Link

Otras preguntas

Name the elder who served as the pilgrims pastor at Plymouth
The molar mass of h2o is 18.01 g/mom . The molar mass of o2 is 32.00 g/moo .what mass of h2o on grams must react to produce 50.00 g of o2
Which economic system is based on private ownership of land and resources? capitalism socialism communism utopianism
What is deductive reasoning? What is the purpose of the deductive approach to the scientific method?
What happens when you multiply a positive number by a positive number less than one?
Describe the pattern of the following sequence: 5, 3, 12, 10, 40, 38, 152
Dr. pimler is conducting a study on a new antipsychotic medication. to determine if the drug is effective, he should:
How many square inches of daylight florescent orange must be worn as an outer garment when hunting deer on public lands?
Who was was the ruler of mali that deflated the value of gold in mecca?
Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Ca+2 , Pb+4 , Br− , S−2