Разложить на множители
1. 2a-4=2(a-2)
2. 3x-2х²+x^3=x(3-2x+х²)
3. 6x(x-y)+y(y-x)=6x(x-y)-y(x-y)=(x-y)(6x-y)
4. x^7*y^5-x^5*y^7=
=x^5*y^5*(х²-y²)=
=x^5*y^5*(x-y)(x+y)
5. (t²+tx)+(11x+11t)=t(t+x)+11(t+x)=(t+x)(t+11)
6. 100-q²=10²-q²=
=(10-q)(10+q)
7. 196p²-r²=14²p²-r²=
=(14p-r)(14p+r)
8. 64-16x+х²=8²-2*8*x+х²=
=(8+x)²
Д/з
1. 3a+5b-4a-2b=3b-a=
=3*1/3-5.3=3/3-5.3=1-5.3=
= -4.3
2. a) p^7*p^4=p^(7+4)=p^11
b) И^21 :И^20=И^(21-20)=И^1
=И
v) (b^4)^17=b^(4*17)=b^68
г) (q^4*q^11)/q=q^4*q^10=
=q^(4+10)=q^14
д) (2^(6*3):2)/(2^3)²*2²=
=2^18/2^7=2^11
3. 1/4y-3-3/8y=4-y
0.25y-0.375y+y=4+3
0.875y=7
y=8