Question

Efetue as adições algébricas:

a) (2a²-7a+11) + (-a² - 3a - 10)

b) (2a²b + 5a²b² - 8ab²) + (-3 a²b² + a²b)

c) (7x³ - 4x -1) - (6x² + 6x - 4)

d) (6a²x - 5ax² - x³) - (2a²x + 3ax² + 5x)

preciso da resposta urgente.

Answer 1

a) (2a²-7a+11) + (-a² - 3a - 10) = 2a² - 7a +11 - a² - 3a - 10 ==> a² - 10a + 1
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b) (2a²b + 5a²b² - 8ab²) + (-3 a²b² + a²b) =

2a²b + 5a²b² - 8ab² - 3 a²b² + a²b =  3a²b + 2a²b² - 8ab²
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c) (7x³ - 4x -1) - (6x² + 6x - 4) = 7x³ - 4x -1 - 6x² - 6x + 4 =  7x³ - 6x² - 10x + 3
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d) (6a²x - 5ax² - x³) - (2a²x + 3ax² + 5x)

6a²x - 5ax² - x³ - 2a²x - 3ax² - 5x = - x³ + 4a²x - 8ax² + 5x