Kendall says the sum of (6x2 4xy 2y2) and (4x2

Ответ:

genyjoannerubiera

30.07.2020

He combined the like terms 2y2 and –3y2 incorrectly.

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rhettperkins

30.07.2020

Kendall combine like terms 2y^2 and -3y^2 incorrectly.

Step-by-step explanation:

It is given that Kendall says the sum of 6x^2+4xy+2y^2 and 4x^2-2xy-3y^2 is 10x^2+2xy-5y^2 .

Step 1: Add both expression

6x^2+4xy+2y^2+4x^2-2xy-3y^2

Step 2: Combine like terms

(6x^2+4x^2)+(4xy-2xy)+(2y^2-3y^2)

Step 3: Simplify

10x^2+2xy-y^2

The sum of both expressions is 10x^2+2xy-y^2 .

Kendall made an error during step 3. His mistake is

2y^2-3y^2=-5y^2

Therefore, Kendall combine like terms 2y^2 and -3y^2 incorrectly.

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ebzloera

04.04.2021

8304nm

Step-by-step explanation:

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