а)2x³+10x+4
б)3a²+25a-11
Объяснение:
а) x³+7x²+8 + (x²-6x+4)(x-1) = x³+7x²+8 + x³-x²-6x²+6x+4x-4 = 2x³+10x+4
б) a(a²+7a-4) - (a³+4a²-29a+11) = a³+7a²-4a-a³-4a²+29a-11 =
= 3a²+25a-11
а)2x³+10x+4
б)3a²+25a-11
Объяснение:
а) x³+7x²+8 + (x²-6x+4)(x-1) = x³+7x²+8 + x³-x²-6x²+6x+4x-4 = 2x³+10x+4
б) a(a²+7a-4) - (a³+4a²-29a+11) = a³+7a²-4a-a³-4a²+29a-11 =
= 3a²+25a-11