Question

calcular os polinomios

Answer 1

Ola Zilda

A = x - 2

B = 2x + 1

C = x

A² = x² - 4x + 4

A² - B + C = x² - 4x + 4 - 2x - 1 + x = x² - 5x + 3

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Answer 2

A = x - 2
B = 2x + 1
C = x

P = A.A - B + C
P (x-2).(x-2) - (2x + 1) + x
P = x² - 2x - 2x + 4 - 2x - 1 + x
P = x² - 2x - 2x - 2x + x + 4 - 1
P = x² - 5x + 3