ASSIGNMENT 4.5 Simplify:
1. x-(6-x) - 6+ (x - 6)
3. (a? - ab) - (62 - 2ab) - 3ab
5. 2xy - [4y2x - (3xy - (4x2y - 2xy2)}
7. (4.r- 7y + 8x) - (x2 - (x2 + y) - 2y + 8x)
9. - [(5x - 3y2) - (3y2 - 422) – (422 - 5x2)] 2. 3x - (4y - 7x + 3y) - 22
4. 3abc - [2abc + (5acb [2abc + (5acb - (-9abell
6. - [3xy - (5xy - 2xy + (8xy - 9xy)}] 8. - [3a2 - 2a2 + 9a? - {6a2-(-202 + 3a 10. - x + 13y,- {x - (4y + 4z)}] -
Answers
Answer:
1 ) Let's simplify step-by-step.
x−(6−x)−6+x−6
=x+−6+x+−6+x+−6
Combine Like Terms:
=x+−6+x+−6+x+−6
=(x+x+x)+(−6+−6+−6)
=3x+−18
Answer:
=3x−18
2. )Let's simplify step-by-step.
a−ab−(62−2ab)−3ab
=a+−ab+−62+2ab+−3ab
Combine Like Terms:
=a+−ab+−62+2ab+−3ab
=(−ab+2ab+−3ab)+(a)+(−62)
=−2ab+a+−62
Answer:
=−2ab+a−62
3. )Let's simplify step-by-step.
2xy−(4y2x−(3xy−(4x2y−2xy2)))
Distribute the Negative Sign:
=2xy+−1(4y2x−(3xy−(4x2y−2xy2)))
=2xy+−1(4y2x)+−1(−3xy)+−1−(−4)x2y+−1(−2xy2)
=2xy+−4xy2+3xy+−4x2y+2xy2
Combine Like Terms:
=2xy+−4xy2+3xy+−4x2y+2xy2
=(−4x2y)+(−4xy2+2xy2)+(2xy+3xy)
=−4x2y+−2xy2+5xy
Answer:
=−4x2y−2xy2+5xy
4. )−7y+8x−(x2−(x2+y)−2y+8x)
Distribute the Negative Sign:
=−7y+8x+−1(x2−(x2+y)−2y+8x)
=−7y+8x+−1x2+−1(−x2)+−1(−y)+−1(−2y)+−1(8x)
=−7y+8x+−x2+x2+y+2y+−8x
Combine Like Terms:
=−7y+8x+−x2+x2+y+2y+−8x
=(−x2+x2)+(8x+−8x)+(−7y+y+2y)
=−4y
Answer:
=−4y
5. ) answer
=15x3−18xy2+15x2+7x−7y−22
Step-by-step explanation:
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