Question

а) (2x - y)(x + y)
б) (а + b)(2а + 3b)
в) (2c + а)(2c - а)
г) (6z - y)(2z - y)
д) (5x - c)(x - 5c)
е) (4m + 3h)(4m + 3h)
ж) (3y - 2u)(3y + 2u)
3) (10x + 3z)(10x - 5z)

Answer 1

а)(2x-y)(x+y)=2x^2+2xy-xy-y^2=2x^2+xy-y^2