August 2018 1 21 Report
Escribe verdadero o falso segun corresponda en las factorizaciones:

a) 2a (a - 2x) + y(a - 2x) + (a - 2x) = (2a + y + 1)(a - 2x)

b) x2 + 9x + 20 = (x + 5) (x + 4)

c) 3x2 - 10x + 3 = (x -3) (3x -1)

d) 9x2 - 16y2= (3x + 4y)(3x - 4y)
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