Предмет: Алгебра, автор: ctyd1gmjha000

помогите с номером 841(а,в)

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Автор ответа: pocchtaa

0

ax+bx+ca+cb=(ax+bx)+(ca+cb)=x(a+b)+c(a+b)=(a+b)(x+c)

m²n-m-mn+1=(m²n-mn)+(-m+1)=mn(m-1)-(m-1)=(m-1)(mn-1)

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