Question

1. 5x + 2y - 3x + y
2. -7a + 2b + 6b - 2a
3. a - 4b + 7 - 3a + 8b
4. 4x² + 3x²
5. x² + 9x - 8x² - x

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dikumpulkan besok​

Answer 1

Verified answer

1. 5x + 2y - 3x + y

• = (5x - 3x) + (2y + y)
• = 2x + 3y

2. -7a + 2b + 6b - 2a

• = (-7a - 2a) + (2b + 6b)
• = -9a + 8b

3. a - 4b + 7 - 3a + 8b

• = (a - 3a) + (-4b + 8b) + 7
• = -2a + 4b + 7

4. 4x² + 3x²

• = (4 + 3)x²
• = 7x²

5. x² + 9x - 8x² - x

• = (x² - 8x²) + (9x - x)
• = -7x² + 8x

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~Trex