а) a²-2a-4a+8= a²-6a+8
б) 15x²-18x+5x-6= 15x²-13x-6
в) 3y²+18yc-2yc-12c²= 3y²+16yc-12c²
г) b³+2b²-2b+3b²+6b-6= b³+5b²+4b-6
а) (a-b)(2x+a)
б) 3(x+y)+b(x+y)= (3+b)(x+y)
0,2y*(10y⁴+5y²-2y²-1)= 0,2y*(10y⁴+3y³-1)= 2y⁵+0,6y⁴-0,2y
-0,4a(10a²-6a⁴+15-9a²)= -0,4a(-6a⁴+a²+15)= 2,4a⁵-0,4a³-6a
а) 3(x-y)-y(x-y)= (3-y)(x-y)
б) a(a+b)-3(a+b)= (a-3)(a+b)
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а) a²-2a-4a+8= a²-6a+8
б) 15x²-18x+5x-6= 15x²-13x-6
в) 3y²+18yc-2yc-12c²= 3y²+16yc-12c²
г) b³+2b²-2b+3b²+6b-6= b³+5b²+4b-6
а) (a-b)(2x+a)
б) 3(x+y)+b(x+y)= (3+b)(x+y)
0,2y*(10y⁴+5y²-2y²-1)= 0,2y*(10y⁴+3y³-1)= 2y⁵+0,6y⁴-0,2y
-0,4a(10a²-6a⁴+15-9a²)= -0,4a(-6a⁴+a²+15)= 2,4a⁵-0,4a³-6a
а) 3(x-y)-y(x-y)= (3-y)(x-y)
б) a(a+b)-3(a+b)= (a-3)(a+b)