Question

resuelve sacando factor comun
a) 5x(-3)+5×(-2)
b) 6×(-5)-(-4)×(-5)
c) 9×a-9×(-2)
d) (-6)+6×b

Answer 1

a) 5x (-3) + 5x (-2)
=5x ((-3)+(-2))
=5x (-3-2)
=5x (-5)
=-25
b) 6(-5) -(-4)(-5)
=(-5)x(6-(-4))
=(-5)x(6+4)
=(-5)x10
=-50
c) 9a-9 (-2)
= 9x (a-(-2))
= 9x (a+2)
d) (-6)+6b
=6x (-1+b)
=6x (b-1)