a)
2x²-xy²-5x²+2xy²=
-3x²+xy²
-3*(1/3)²+1/3*9²=
-3*1/9+1/3*81=
-1/3+81/3=
80/3=26 2/3
b)
-1/2x³y-2/3xy+1/2x³y-1/3xy=-xy
-1/3*9=-3
a) 5x+10y=5(x+2y)
b) 4m+4=4(m+1)
c) 3a-3=3(a-1)
d) 5xy-x=x(5y-1)
e) -6a²-2a=-2a(3a+1)
f) 6a²-12ab=6a(a-2b)
g) 1/2xy-1/2x=1/2x(y-1)
h) 1/3a²b+1/9ab²=1/3ab(a+1/3b)
i) 2xyz-4x²y²z+xyz²= xyz(2-4xy+z)
j) stv²-stv+tv²=tv(sv-s+v)
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a)
2x²-xy²-5x²+2xy²=
-3x²+xy²
-3*(1/3)²+1/3*9²=
-3*1/9+1/3*81=
-1/3+81/3=
80/3=26 2/3
b)
-1/2x³y-2/3xy+1/2x³y-1/3xy=-xy
-1/3*9=-3
a) 5x+10y=5(x+2y)
b) 4m+4=4(m+1)
c) 3a-3=3(a-1)
d) 5xy-x=x(5y-1)
e) -6a²-2a=-2a(3a+1)
f) 6a²-12ab=6a(a-2b)
g) 1/2xy-1/2x=1/2x(y-1)
h) 1/3a²b+1/9ab²=1/3ab(a+1/3b)
i) 2xyz-4x²y²z+xyz²= xyz(2-4xy+z)
j) stv²-stv+tv²=tv(sv-s+v)
a) 2x²-xy²-5x²+2xy² = -3x²+xy²= -3*⅓² + ⅓*9²=26⅔
b)-½ x³y- ⅔xy +½ x³y- ⅓ xy = -1xy=-1* ⅓ * 9 = -3
2.
a) 5x+10y = 5(x + 2y)
b)4m+4 = 4(m +1)
c)3a-3 = 3(a -1)
d)5xy-x = x(5y - 1)
e)-6a²-2a = -2a(3a +1)
f)6a²-12ab = 6a(a -2b)
g)½xy- ½x = ½x(y - 1)
h)⅓a²b+¹/₉ ab² = ⅓ab(a+ ⅓b)
i)2xyz-4x²y²z+xyz² = xyz(2 -4xy +z)
j)stv²-stv+tv² =tv(sv -s +v)
a)
2x²-xy²-5x²+2xy²=-3x²+xy²=-3*(1/3)²+1/3*9²=-3*1/9+1/3*81=-1/3+27=26 2/3
b)
-1/2x³y-2/3xy+1/2x³y-1/3xy=-xy=-1/3*9/1=-3
2.
a)5x+10y=5(x+2y)
b)4m+4=4(m+1)
c)3a-3=3(a-1)
d)5xy-x=x(5y-1)
e)-6a²-2a=-2a(3a+1)
f)6a²-12ab=6a(a-2b)
g)1/2xy-1/2x=1/2x(y-1)
h)1/3a²b+1/9ab²=1/3ab(a+1/3b)
i)2xyz-4x²y²z+xyz²=xyz(2z-4xy+z)
j)stv²-stv+tv²=tv(sv-s+v)