BrainUser403 BrainUser403

19-01-2021
Mathematics

contestada

Worth 20 points, please help and give good answers than you(will mark brainlest)

Worth 20 points please help and give good answers than youwill mark brainlest class=

Respuesta :

khaledhamada khaledhamada

19-01-2021

Answer:

B

Step-by-step explanation:

all you need is to solve the first term

2x² - (-3x²) = 5x² ,

b is the only answer with 5x² in it

Answer Link

vchijioke04 vchijioke04

19-01-2021

Answer:

A

Step-by-step explanation:

-3x2 + 5y - 4xy + y2 - (2x2 - 4y + 7xy - 6y2)

use - sign to open bracket by multiplying

-3x2 + 5y - 4xy + y2 - 2x2 + 4y - 7xy - 6y2

collect like terms

-3x2 - 2x2 + 5y +4y - 4xy - 7xy + y2 +6y2

-5x2 + 9y - 11xy + 7y2

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