slytherinprincp6u29k
slytherinprincp6u29k slytherinprincp6u29k
  • 02-10-2018
  • Mathematics
contestada

Which value for x makes the open sentence true? 8 + 3 • x = 2 squared + x squared Question 1 options: 5 4 3 2

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 02-10-2018

8 + 3 *X = 2^2 + X^2

Simplify:

8 + 3x = 4 +x^2

Subtract x^2 from each side:

8 + 3x - x^2 = 4

subtract 4 from each side:

8 + 3x -x^2 -4 = 0

Simplify:

3x - x^2 +4 = 0

Factor

-(x-4)(x+1) =0

X = 4, -1

The answer would be 4.


Answer Link
Аноним Аноним
  • 02-10-2018

Hi Slyther,

Answer - B. 4

8 + 3 * x = 2^2 + x^2

8 + 3 x 4 = 2^2 + 4^2

8 + 12 = 4 + 16

20 = 20

Answer Link

Otras preguntas

The graph below shows the quadratic function f, and the table below shows the quadratic function g. x -2 -1 0 1 2 3 4 g(x) -1 0.75 2 2.75 3 2.75 2 Which stateme
Calculate the average rate of change of the function f(x) = 3x2 over the interval 1 ≤ x ≤ 5. A) 4 B) 18 C) 36 D) 48
Part a fill in the blanks in the table below where both δh and δs refer to the system. complete the table by dragging the labels to the appropriate targets.
What is the value after 7 years of 2014 Ford Mustang that originally cost $25,000 if it depreciates at a rate of 8% per year round your answer to the nearest do
Abraham maslow's term "primary creativity" would best be described as
TESMAN: If you could only prevail on yourself to say du to her. For my sake, Hedda? Eh? HeddaGabler; act 1, p. 25 What does Tesman want his wife to do? to call
#10 Solve the equation - 1/3 - 7 = 5
if anyone would be able to help me. it would be great.
What is the following product? (1√2+√6)(√6- √10)
A pyrrhic foot is a foot with accented syllable/s.