tbogard0001 tbogard0001

03-07-2020
Mathematics

contestada

Which of the following are solutions to the quadratic equation below?
Check all that apply.
X^2+ 8x=9
A. -3
B. 1
C. -9
D. -1
E. 3

Respuesta :

Alfpfeu Alfpfeu

03-07-2020

Answer:

1 and -9

Step-by-step explanation:

[tex]x^2+8x-9=0\\<=> x^2-x+9x-9=0\\<=> x(x-1)+9(x-1)=0\\<=> (x+9)(x-1)=0\\<=> x = -9 \ \ or \ \ x =1\\[/tex]

hope this helps

Answer Link

Otras preguntas

The sprinkler in Rob's sprinkler system waters a circular area. The sprinkler is in an open part of Rob's lawn and waters up to 18 feet away. What is the area t

Which man was considered to be “the leader of Modernism” beginning in the 1920s? A. Shakespeare B. F. Scott Fitzgerald C. T.S. Eliot D. Henry David Thoreau

Perceptual constancy is a false perception of reality caused by a tendency to misinterpret stimuli. a. True b. False

who is the president now

Which one of the following statements is accurate? A. Compound light microscopes utilize lenses and beams of electrons to produce images. B. False colors are

The test to detect the presence of a liver disorder is 98% accurate for a person who has the disease and 97% accurate for a person who does not have the disease

Robert Browning's "My Last Duchess" is an example of which type of poem?Select one of the options below as your answer: a. Epic b. Ode c. Elegy d. Dramatic

Which metric prefix means “a million”? Kilo Tera Giga Mega

The amount of energy a person can consume throughout the day without gaining weight is extremely dependent on A. hunger. B. appetite. C. culture. D. activity le

......................................