Раскрыть скобки и привести подобные
(x-2)(2x-1)
(2-y)(y²+3)
(a+4)(1-a)+a²
(m+2)(m²-m+2)
(x-2)(2x-1)
(2-y)(y²+3)
(a+4)(1-a)+a²
(m+2)(m²-m+2)
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Verified answer
1) 2x^2 - x - 4x + 2 = 2x^2 - 5x + 22) 2y^2 + 6 - y^3 - 3y
3) a - a^2 + 4 - 4a + a^2 = 4 - 3a
4) m^3 - m^2 + 2m + 2m^2 - 2m + 4 = m^3 + m^2 + 4