а) а^2 - 16б) 5ху - 5х^2у + у^2 - 5хув) 1 - х^6г) -4x^3 + x^2
а) (7 - x)(7 + x)б) (-0.1x + у)(0.1x + у)в) (3 - а^2)(3 + а^2)г) (-0.2x + уz)(0.2x + уz)д) (x - 1 - 3)(x - 1 + 3)
а) x^2 - 4 = 0 => x = ±2б) x^2 - 1 = 0 => x = ±1в) x^2 - x^2 + 16 = 2x => 16 = 2x => x = 8г) 25x^2 - 16 = 0 => x = ±4/5
а) а^2 - 16
б) 5ху - 5х^2у + у^2 - 5ху
в) 1 - х^6
г) -4x^3 + x^2
а) (7 - x)(7 + x)
б) (-0.1x + у)(0.1x + у)
в) (3 - а^2)(3 + а^2)
г) (-0.2x + уz)(0.2x + уz)
д) (x - 1 - 3)(x - 1 + 3)
а) x^2 - 4 = 0 => x = ±2
б) x^2 - 1 = 0 => x = ±1
в) x^2 - x^2 + 16 = 2x => 16 = 2x => x = 8
г) 25x^2 - 16 = 0 => x = ±4/5