Разложить на множители:
10ab+15b2 x2-10x+25
27a2+18ab y2+6y+9
x2+xy-3x-3y (a+1)2-9a2
2xy-5y2-6x+15y b2-(b-2)2
a4-16 x3+8y3
49-b4 x3-27y3
10ab+15b2 x2-10x+25
27a2+18ab y2+6y+9
x2+xy-3x-3y (a+1)2-9a2
2xy-5y2-6x+15y b2-(b-2)2
a4-16 x3+8y3
49-b4 x3-27y3
Answers & Comments
10ab+15b2= 5в(2а+3в) x2-10x+25= (х-5)(х-5)
27a2+18ab=9а(3а+2в) y2+6y+9=(у+3)(у+3)
x2+xy-3x-3y=(х-3)(х+у) (a+1)2-9a2=(1-2а)(4а+1)
2xy-5y2-6x+15y=(2х-5у)(у+3) b2-(b-2)2= 2(2в-2)
a4-16=(а-2)(а+2)(а+4) x3+8y3=(х+2у)(х2-2ху+у2)
49-b4=(7-в2)(7+в2) x3-27y3=(х-3у)(х2+3ху+у2)