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

WILL GIVE BRAINLIEST A zoo train ride costs $3 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took the ride w

List of most popular dog breeds in italy

How did Newton discover natural laws

X(2•x)= 4•5•y You get 77 points in you can help me with this!

What's the answer to 2x-4y=20? Solve the literal equation for y.

At the deli jennifer bought spicy turkey and provolone cheese. the turkey costs $6.32 per pound and the cheese costs $4.27 per pound. in total, she bought 3.2 p

A company's prime costs total $4,800,000 and its conversion costs total $8,800,000. if direct materials are $1,900,000 and factory overhead is $5,900,000, then

Given that 1 meter = 1 x 109 nanometers, what is the diameter of the average cell in the human body, in nanometers? Show your work The diameter of the average c

Compare and contrast egyptian and nubian society. why is there so much more known about egypt? come up with at least five good reasons.

The movement of h+ ions into the stomach (represented above) is accomplished through: