Помогите:) пжлст ))))))))))))))

Question

Помогите:) пжлст ))))))))))))))

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Answer 1

1)30xˇ4yˇ8/55xˇ2yˇ7z= 6xˇ2.y/11z
2)4a(a-1)/8aˇ2b(a-1)=1/2ab
3)(cˇ2+cd)/(8c+8d)=c(c+d)/8(c+d) = c/8
4)(14t-21z)/(4tˇ2-9zˇ2)=7(2t-3z)/(2t+3z)(2t-3z)=7/(2t+3z)
5)(mˇ2-4m+4)/(mˇ2-2m)=(m-2)ˇ2/m(m-2)=(m-2)/m
6)(2x-4)/(xˇ3-8)= 2.(x-2)/(x-2)(xˇ2+2x+4)=2/(x2+2x+4)

Answer 2

A (6*х^2*y)\(11z)
b 1/(2ab)
c c/8
d 7/(2t+9c) (7 za skobki i formula raznosti kvadratov)
e (m-2)/m (formula,mnojitel)
f 2/(x-2)^2