Question

Descompunr-ți în factori:

a) 4x - 8
b) 16a^2 - 9b^2
c)x^2 - 3x + 2

Answer 1

a) 4 x - 8 = 4 ( x - 2)

b) 16 a² - 9 b² = ( 4 a - 3 b ) ( 4 a + 3 b )

c ) x² - 3 x + 2 = x² - x - 2 x + 2 = x ( x - 1) - 2 ( x - 1 ) = ( x - 1 ) ( x - 2)

Answer 2

a) 4x-8 = 4(x-2)

b) 16a²-9b² = (4a-3b)(4a+3b)

c) x²-3x+2 =(x-2)(x-1) = x²-x-2x+2 = x²-3x+2