Разложите на множители x³-x²-16x+16 64b²-(8-b)²

X^3 - X^2 - 16X + 16 = X^2 * ( X - 1 ) - 16 * ( X - 1 ) = ( X - 1)*( X^2 - 16 ) =
= ( X - 1 )*( X - 4)*( X + 4 )

64B^2 - ( 8 - B)^2 = 64B^2 - ( 64 - 16B + B^2 ) = 64B^2 - 64 + 16B - B^2 =
= 63B^2 + 16B - 64 = 63 * ( X - 56/63)*( X + 72/63 ) = ( 63Х - 56)*( 63X + 72 ) 
D = 256 + 16128 = 16384 ; √ D = 128 
B1 = ( - 16 + 128 ) : 126 = 112/126 = 56/63 
B2 = ( - 16 - 128 ) : 126 = - 144/126 = - 72/63 
ответ ( 63X - 56)*( 63X + 72 )