Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

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}


Sagot :

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.