Question

descompuneți în factori:
5x-5y
7x²+7x
12x²y-8xy
15x³-5x²
3a³b²+6a²b³-9a²b²
15x³y³-10x²y²+5x²y³
6x²y⁴-2xy³+14x³y²
x(y-1)+y(y-1)
a(x+1)-b(x+1)
a(x-3)-b(x-3)+x-3
(2x-3) (x-5)-3(x-5)²
(x-y) (2x-y+z)+(y-x) (x-y+z)
(3a+b) (a-b)-(b-a) (a+b)
(a√2-b√3) (2a+1)+(a√2-b√3) (a+2)
dau coroană. mulțumesc ❤❤

Answer 1

5x-5y=5(x-y)
7x²+7x=7x(x+1)
12x²y-8xy=4xy(3x-2)
15x³-5x²=5x²(3x-1)
3a³b²+6a²b³-9a²b²=3a²b²(a+2b-3)
15x³y³-10x²y²+5x²y³=5x²y²(3xy-2+y)
6x²y⁴-2xy³+14x³y²=2xy²(3xy²-y+7x)
x(y-1)+y(y-1)=(x+y)(y-1)
a(x+1)-b(x+1)=(a-b)(x+1)
a(x-3)-b(x-3)+x-3=(a-b)(x-3)³
(2x-3) (x-5)-3(x-5)²=(2x-3)-3(x-5)³
(x-y) (2x-y+z)+(y-x) (x-y+z)=2(x-y)³(y-x+z)
(3a+b) (a-b)-(b-a) (a+b)=3(a+b)³
(a√2-b√3) (2a+1)+(a√2-b√3) (a+2)=(a√2-b√3)²(3a+3)
Toate sunt corecte,succes la teme! :)