Question

urgente!!!
1) 3. (x + Y) =

2) 2. (a – b) =

3) 7. (x – 2y) =

4) 2. (3a + 4b) =

5) X. (y – 2) =​

Answer 1

Resposta:

3(x + y) = 3x + 3y

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2(a - b) = 2a - 2 b

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7(x.2y) = 14xy       ou    7( x - 2y) = 7x - 14y    não entendi bem

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2(3a + 4b) = 6a + 8b 

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x.(y - 2 ) = xy - 2x 

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a - (a - 1) = a - a + 1 = 1          ou a(a - 1) = a² - a     não entendi bem

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a - ( a + b) = a - a + b = b        ou a .(a + b) = a² + ab

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x²(x - 1) = x³ - x²

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