jalros5emsheyb
jalros5emsheyb jalros5emsheyb
  • 11-05-2016
  • Mathematics
contestada

Solve: 16x2 − 81 = 0.
x = 4, 9
x = −4, −9
x = 9 over 4, x = −9 over 4
x = 81 over 16, x = −81 over 16

Respuesta :

Neuron
Neuron Neuron
  • 18-05-2016
If you would like to solve 16x^2 - 81 = 0, you can calculate this using the following steps:

16x^2 - 81 = 0
(4x - 9) * (4x + 9) = 0
1. 4x - 9 = 0 ... 4x = 9 ... x = 9/4
2. 4x + 9 = 0 ... 4x = - 9 ... x = - 9/4

The correct result would be: x = 9 over 4, x = −9 over 4. 
Answer Link

Otras preguntas

Match the civilization with its famous structure(s): 1. Egypt Taj Mahal 2. India Great Wall 3. Roman Pyramids 4. Greeks Colosseum 5. Chinese
What states border utah?
Unlike roots, stems____. A. transport water B. have ground tissue C. are protected by epidermal cells D. may play a part in photosynthesis.
Which term describes the example below? A white cat has a mother that is homozygous dominant and a father that is homozygous recessive. A. homozygous dominant
Ronald grows oranges on his farm. He finds that most of the fruit falls off the trees before becoming mature. What should he spray on the trees to stop the frui
How can you multiply 242x8 by breaking apart numbers
When working with additional information in a sentence, when should dashes be used instead of commas or parentheses?
If a compound-complex sentence is missing a dependent clause, what type of sentence would it most likely be? simple compound complex compound-compound
Thesis statement for a car crash
How many presidents have there been in the united states?