a)3x²y³z⁵ - 9x³y⁵z³= 3x²y³z³(z²-3xy²)
3x²y³z⁵ - 9x³y⁵z³ = xyz(3xy²z⁴-9x²y⁴z²)
3x²y³z⁵ - 9x³y⁵z³ = 9z³(⅓x²y³z²-x³y⁵)
b)
u²v⁴-5u⁴v² = u²v²(v²-5u²)
u²v⁴-5u⁴v² = 5uv(⅕uv³-u³v)
u²v⁴-5u⁴v² = -5v² (-⅕u²v²+u⁴)
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1.ab+6
2.(a+b)/2
3.7(x² · y²)
4.y*y+3
5.(y+3)*2
6.x*x/3
7.n*0,05
8.n*1,07
9.k>
3
a) 8x - 2xy
b) 2a²x
c) -5ab -a³b
d) 0,5x²y - 6,5xy²
e) 2x + 10y
f) 9a²b²
g) 36x²y²
4
2x - 3y-(2y - 3x)=2x-3y-2y+3x=5x-5y
2y - 3x-(2x - 3y)=2y-3x-2x+3y=5y-5x
2x + 3y-(2x - 3y)= 2x+3y-2x+3y=6y
2y - 3x-(2x - 3y+2x + 3y)=2y-3x-4x=2y-7x
2x - 3y-(2x + 3y-(2y - 3x))=2x-3y-(2x+3y-2y+3x)=2x-3y-5x-y=-3x-4y
1
a) 4a(5b - 2a)= 20a - 8a³
B)1/3t^(3 + 1/2t^) = t^ + 1/6t(4)⁴
c)5a(5a^ - 0,2)=25a do potegi 3 -a
d)(12y^+3xy^):6=2y^ + 1/2xy^
e)(4y-6x):(-2)=-2y + 3x
f) 1/2t(4)-3/5w(4):3=1/6t(4)-1/5w(4)
2
a)3x²y³z⁵ - 9x³y⁵z³= 3x²y³z³(z²-3xy²)
3x²y³z⁵ - 9x³y⁵z³ = xyz(3xy²z⁴-9x²y⁴z²)
3x²y³z⁵ - 9x³y⁵z³ = 9z³(⅓x²y³z²-x³y⁵)
b)
u²v⁴-5u⁴v² = u²v²(v²-5u²)
u²v⁴-5u⁴v² = 5uv(⅕uv³-u³v)
u²v⁴-5u⁴v² = -5v² (-⅕u²v²+u⁴)