diamond6052 diamond6052

21-12-2020
Mathematics

contestada

B is the midpoint of, AB = x² + 2x + 25 and BC = 40. What are the values of x?

Respuesta :

Yang100 Yang100

21-12-2020

Answer:

x=3, -5.

Step-by-step explanation:

x^2+2x+25=40

x^2+2x+25-40=0

x^2+2x-15=0

factor out the trinomial,

(x-3)(x+5)=0

zero property,

x-3=0, x+5=0,

x=0+3=3,

x=0-5=-5.

Answer Link

Otras preguntas

Find b, given that a = 18.2, B = 62°, and C = 48°. Round answers to the nearest whole number. Do not use a decimal point or extra spaces in the answer or it w

which phrase is the best example of parallelism A. The rain sounds like thousands of soft tiny feet scampering on the roof B. The rain fell the sun shone and t

Find the factorization of each number. 504

oliver has 14 chocolate chip cookies and 21 iced cookies. Oliver gives each of his friends an equal number of each type of cookie. What is the greatest number o

An atom's valence electrons are those electrons that have the highest energy True or False?

Uma wrote the following. 15=x x=15 Which property of equality did she use? transitive property of equality substitution property of equality multiplication pro

How many solutions does the following system of equations have? 2y=5x+4 y=3x+2 a) infinitely many b) zero c) one d) two

Worksheets for There and there?

Parallel lines have the same slope

Which country has more oil—paraguay or peru?