1. Combine terms: 12a + 26b -4b – 16a.
A. 4a + 22b,
B. -28a + 30b,
C. -4a + 22b,
D. 28a + 30b.
2. Simplify: (4 – 5) – (13 – 18 + 2).
A. -1,
B. –2,
C. 1,
D. 2.
3. Multiply: (x – 4)(x + 5)
A. x²+ 5x - 20,
B. x² - 4x - 20,
C. x² - x - 20,
D. x² + x - 20.
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Answers & Comments
Answer:
1. B-28a + 30b
2. D 2.
3. A
Step-by-step explanation:
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1. Combine terms: 12a + 26b -4b – 16a.
2. Simplify: (4 – 5) – (13 – 18 + 2).
3. Multiply: (x – 4)(x + 5)