emily2007castillo emily2007castillo
  • 02-11-2021
  • Mathematics
contestada

Select all the expressions that are equivalent to 5x^2+8x+2. ??
1) 3x^{2}+x+2x^{2}+2+7x
2) 8x^{2}+4x-3x^{2}+4-3x
3) 2+12x+x^{2}-4x+5^{2}
4)2+12x+x^{2}-4x+5^{2}

Respuesta :

reinhard10158
reinhard10158 reinhard10158
  • 03-11-2021

Step-by-step explanation:

if there are no typos then only 1) is correct.

3x² + 2x² = 5x²

x + 7x = 8x

2 = 2

2)

8x² - 3x² = 5x²

4x - 3x = x

4 = 4

wrong

3)

x² + 5x² = 6x²

12x - 4x = 8x

2 = 2

wrong

4)

is the same as 3)

so, I am sure the original problem description has something else here. be careful - the original might be another correct answer here.

Answer Link

Otras preguntas

find the difference 34/31 - 9/45
Please help me solve this please anyone
Graphing and evaluating
The property of sound that gives instruments and voices their unique tone color is.
a guest approaches the host in a restaurant and offers a complaint about the service they received. if the host is empowered to make a decision about the custom
Which of the following strings of amino acids can be decoded using single letter amino acid abbreviations to a type of secondary structure? a. Alanine luecine p
prove that if all of the 2n subsets of a set containing 2n 1 are equal, then all elements of set n are equal
If an element has 20 protons, 20 electrons, and 25 neutrons, what is it's atomic mass?
which is true regarding catecholamines? group of answer choices they are from the parasympathetic nervous system. they include epinephrine and norepinephrine. t
ILL GIVE BRAINIEST Find a​ point-slope form for the line with slope 1 5 and passing through the point ​(−8​,−5)