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Scrie sub formă de produs:
a) 3(x-y)^2+9x^2(x-y)^2
b) a(x-1)-(x-1)b
c) a(x-1)^2+4b(x-1)^2
d) a(x-3)-(x-3)b+(x-3)c
e)m(x+a)-p(x+a)+q(x+a)
f) x(x-2y)+3(2y-x)-x+2y


Răspuns :

a) (x-y)^2 * (3+9x^2)
b) (x-1) * (a-b)
c) (x-1)^2 * (a+4b)
d) (x-3) * (a-b+c)
e) (x+a) * (m-p+q)
f) x(x-2y)-3(x-2y)-(x-2y)
= (x-2y) * (x-3-1) = (x-2y) * (x-4)