Question

plzz give me correct answer and step by step and please tell me 2 question answer only​

Answer 1

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a) Subtract 3x + 4y - 2z from the sum of 3 + 4z + 3y - x and 3x + 2y - 3z + 2

Solution : Sum of 3 + 4z + 3y - x and 3x + 2y - 3z + 2

- x + 3y + 4z + 3

+ 3x + 2y - 3z + 2

_____________

2x + 5y + z + 5

_____________

Subtracting the sum of 3 + 4z + 3y - x and 3x + 2y - 3z + 2 from 3x + 4y - 2z

3x + 4y - 2z

- (+2x) + 5y + z + 5

___________________

Signs change to - , - , - , -

___________________

3x + 4y - 2z

+ 2x - 5y - z - 5

___________________

5x -y - 3z - 5

___________________

b) Subtract the sum of 3x² + 2x - 1 and - 2x² + 3x - 5 from the sum of 5x² - 2x and 3x² - x + 3

Solution : sum of 3x² + 2x - 1 and - 2x² + 3x - 5

3x² + 2x - 1

+ ( - 2x² ) + 3x - 5

_____________

x² + 5x - 6

_____________

sum of 5x² - 2x and 3x² - x + 3

5x² - 2x

+ 3x² - x + 3

___________

8x² - 3x + 3

___________

subtraction ,

8x² - 3x + 3

- x² - 5x + 6

__________

7x² - 8x + 9

__________