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

If 5^3b-1=5^b-3 what is the value of b?
the amount of work done at a grocery store stocker uses 120 N of force to lift a sack of flour 1.5 m onto a shelf
Why does Nikolai Gogol use a matter-of-fact tone in "The Nose"?
The Mughal Empire was established by who
.5555555556 as a fraction?
The natural functions of Earth seem all _____ in one way or another. interconnected the same separate
How does Pippi say the rusty can protected her when she tripped? A. If she'd found it sooner, she could have used it to blow bubbles. B. If she'd found it so
The transfer of genetic code from DNA to an RNA molecule is what?
What does this exchange reveal about the relationship between Edna and Arobin?
What single rigid transformation maps ABC onto A'BC'?