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

who made the game Monopoly???

a downtown parking lot charges $5 per hour

identify the root for the word belligerent

Translate jim gan • jackson ave/pine rd 试试去你邻居家跟他们商量一下不就解决了？.

Which factor is likely to have contributed the most to the Romani people's difficulties in blending with society? a: Trades are handed down through families b

Mr. Parker bought a coat when it was on sale. He paid 70% of the original price. He paid $42 for the coat. What was the original cost of the coat?

Joe's total bill for pizza and soft drinks was $27.50. He left a 20% tip for their server. How much tip did he leave?

Find the value of x in the figure.

The youngest seafloor rocks are found ____. a. near the edges of continents b. beneath the deep sea trenches c. evenly distributed over the ocean basins d. near

Give an example of a group of people that had to adapt (change) the way they lived