Question

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Answer 1

Resposta:

a)-1300. b)420,00

Explicação passo-a-passo:

a) a= -10

b= -2

a²-3a²b²

-10² - 3 × -10² × -2²

-100 - 3 × 100 × 4

-100 - 1200

-1300

b) -216,25 + x = 203,75

x = 203,75 + 216,25

x = 420,00