Question

д) (5x-c)(x-5c)=
е) (4m+3n)(4m+3n)=
ж) (3y-2u)(3y-2u)=
з) (10x+3z)(10x-5z)=

Answer 1

д) (5x-c)(x-5c)=5x²+26cx+5c²е) (4m+3n)(4m+3n)=16m²+9n²
ж) (3y-2u)(3y+2u)=9y²-4u²
з) (10x+3z)(10x-5z)=100x²-20xz-15z²