sydneeyoung13 sydneeyoung13
  • 02-03-2022
  • Mathematics
contestada

The sum of the square of a positive number and the square of 2 more than the number is 20. What is the number?

Respuesta :

the10legendgamer
the10legendgamer the10legendgamer
  • 02-03-2022

Answer:

Let one number = x

Let the other number = x + 2

Use these variables to establish appropriate equations.

x2 + (x + 2)2 = 52

Solve for x from this equation. Expand any terms to get rid of parentheses.

x2 + x2 + 4x + 4 = 52

Combine any like terms.

2x2 + 4x - 48 = 0

WE now have a quadratic equation. Factor out a 2.

2(x2 + 2x - 24) = 0

Factor completely.

2(x + 6)(x - 4) = 0

Set the binomial factors equal to zero.

x + 6 = 0 and x - 4 = 0

Solve for x from these parts. Choose the positive x value.

Answer Link

Otras preguntas

what does a guatemalan woman's huipil tell about her
what does having courage mean
Latasha studied hard for her American history test and earned an a a the a ask as for her hard work
A type of learning where you watch the behavior of another person or model is called __________ learning. a. cognitive b. observational c. latent d. reward
Which elements are distinct to drama and not typically found in other written stories? a. plot b. script c. setting d. theme e. cast
Tennis racket marked up 50% to $36.76
list reasons people wanted to end prohibition
The wind smells slow-and-sour means what?
Compare the causes and effects of the Great Leap Forward and the Cultural Revolution in China.
Which is a true statement about federal judges? They are appointed by the Senate. They serve five-year terms. They are approved by the Supreme Court. They serve