Wyłącz wspólny czynnik przed nawias :
a) 42xy + 56x²y - 49 xy²
b) 5x(a+z)-4y(a+z)
dziekuje !
dam naj !!!!
a 7xy(6+8x-7y)
b a+z(5x-4y)
a)
42xy +56x^2 y - 49xy^2 = 7xy(6+8x-7y)
b)
5x(a+z) - 4y(a+z) =(a+z)(5x-4y)
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a 7xy(6+8x-7y)
b a+z(5x-4y)
a)
42xy +56x^2 y - 49xy^2 = 7xy(6+8x-7y)
b)
5x(a+z) - 4y(a+z) =(a+z)(5x-4y)