Fatore 3a²x - 2b² + 2a² - 3b²x:
A) (a - b)(a - b)(3x + 2)
B) (a + b)(a + b)(3x + 2)
C) (a + b)(a + b)(3x - 2)
D) (a + b)(a - b)(3x + 2)
E) (a - b)(a - b)(3x - 2)
A) (a - b)(a - b)(3x + 2)
B) (a + b)(a + b)(3x + 2)
C) (a + b)(a + b)(3x - 2)
D) (a + b)(a - b)(3x + 2)
E) (a - b)(a - b)(3x - 2)
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3a²x - 2b² + 2a² - 3b²x: junta iguais
3a²x + 2a² - 3b²x - 2b²
a²(3x + 2) - b²(3x + 2)
(3x + 2)(a² - b²) -------------> atenção a² - b² = (a - b)(a + b)
(3x + 2)(a - b)(a + b) mesmo que
(a - b)( a + b)(3x + 2)resposta
A) (a - b)(a - b)(3x + 2)
B) (a + b)(a + b)(3x + 2)
C) (a + b)(a + b)(3x - 2)
D) (a + b)(a - b)(3x + 2) letra (D)
E) (a - b)(a - b)(3x - 2)