помогите сократить дроби все а и б

33 a) (b^2-25)/(b+5)=(b-5)(b+5)/(b+5)=b-5
b) (2m-3)/(4m^2-9)=(2m-3)/(2m-3)(2m+3)=1/(2m+3)
34 a) (4p^2-2p+1)/(8p^3+1)=(4p^2-2p+1)/(2p+1)(4p^2-2p+1)=1/(2p+1)
b) (27a^3+8)/(2+3a)=(3a+2)(9a^2-6a+4)/(3a+2)=9a^2-6a+4

35 a) (9x^2-6x+1)/(9x^2-1)=(3x-1)^2/(3x-1)(3x+1)=(3x-1)/(3x+1)

b) (16a^2-25b^2)/(16a^2+40ab+25b^2)=(4a-5b)(4a+5b)/(4a+5b)^2=(4a-5b)/(4a+5b)