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

PLEASE HELP ME WITH THIS ASAP

An uncharged spherical conductor hangs by an insulating thread. You bring a negatively charged rod near from the left side. The net charge on the hanging conduc

perpendicular to the line y =6 - 3x; passes through (-3, -1)

Q2:- Which branch of chemistry deal with the structure and properties of naturally occurring molecules?

If the earth were the size of an apple, which piece would best represent the amount of mass of the atmosphere? O the skin O the meat O the stem O Oops..... I a

a triangle is obtuse provided all the angles have a measure greater then 90 degrees

Any help will do! Thank you!

What type of energy conversion takes place when playing a song on the radio? 1. Electrical energy to light energy 2. Light energy to electrical energy 3. Electr

Who wants to solve a question

Hey need help on this question. Could I have a simple explaination please as I find it difficult to understand things