8° ano, dever de matemática?
Fatore as expressões:
A) 15m - 5m² =
B) x²y + xz =
C) 9x² - 100 =
D) x² - 36 =
E) x² - 8x + 16 =
F) 9x² + 24x + 16 =
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Fatore as expressões:
A) 15m - 5m² =
B) x²y + xz =
C) 9x² - 100 =
D) x² - 36 =
E) x² - 8x + 16 =
F) 9x² + 24x + 16 =
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Ola Mateus
A) 15m - 5m² = 5m*(3 - m)
B) x²y + xz = x*(xy + z)
C) 9x² - 100 = (3x + 10)*(3x - 10)
D) x² - 36 = (x + 6)*(x - 6)
E) x² - 8x + 16 = (x - 4)²
F) 9x² + 24x + 16 = (3x + 4)²
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