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FrozenT [24]
3 years ago
13

• Expand and simplify the following expressions: • (a + b + 1)(a - b)

Mathematics
1 answer:
Kruka [31]3 years ago
8 0

Answer:

a² + b² + a - b

Step-by-step explanation:

brackets mean multiplying everything by each individual

a² + ba + a - ba - b² - b

simplify buy collecting like terms:

highest values first and +ba mad -ba cancel out

a² + b² + a - b

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