1. (x-8)(6-y) 2. (3c+7)(4-3c) 3. (x+3)(x во второй степени -x-1) 4. 5(x+2)(x+3) 5. 8x-(3x+1)(5x+1) 6. (y+2)(y+3)-(y во второй степени+y)
1. 6X-XY-48+8Y скачай Photo Math