а) 48-3х^2 = 3(16-x)(16+x)б) 2ах^2-2ау^2 = 2a(x^2-y^2) = 2a(x-y)(x+y)в) 4с^2-8с+4 = (2c-2)^2 = (2c-2)(2c-2) = 2(c-1)(c-1)
а) 48-3х^2 = 3(16-x)(16+x)
б) 2ах^2-2ау^2 = 2a(x^2-y^2) = 2a(x-y)(x+y)
в) 4с^2-8с+4 = (2c-2)^2 = (2c-2)(2c-2) = 2(c-1)(c-1)