Januarius
Januarius Januarius
  • 21-08-2020
  • Mathematics
contestada

If x * (x + 2) = 49, find x

Respuesta :

Space
Space Space
  • 21-08-2020

Answer:

x = -8.07107, 6.07107

Step-by-step explanation:

Quadratic Formula: [tex]x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}[/tex]

Step 1: Write out equation

x(x + 2) = 49

Step 2: Distribute

x² + 2x = 49

Step 3: Subtract 49 on both sides

x² + 2x - 49 = 0

Step 4: Quadratic Formula

a = 1

b = 2

c = -49

x = -8.07107, 6.07107

Answer Link

Otras preguntas

Find the 2 consecutive integers whose squares have a difference of 239
please help me solve this
Lines p and q are parallel. Parallel lines p and q are cut by transversals r and s. At the intersection of lines p, r, and s, clockwise from top left, the angle
write an essy explaining the importance of tolerance in society​
help pls !! ♡ 6. In the diagram of circle O, tangent PB is drawn as is secant PAC. We wish to prove the Secant/Tangent Length Theorem, i.e. PA·PC = PB2. (a) Exp
is y=x^3 a linear equation
Which of the following best describes the main effect of the draft between 1917 and 1919? the draft led to american entry into world war i. the draft reassured
How do you feel about nature? Do you like it? Why or why not? Does nature impact (effect) you? Why or why not? In your opinion what draws people to nature?
How do you think the development of synthetic medicines like aspirin have impacted society?
Santee Cooper is stocking lakes, Marion and Moultrie, with 109,000 sterile grass carp. The grass carp, which eat hydrilla (invasive species), are the most effec