Question

1.Упростите упражнения.
а) (с+4)*(с-1)-с²=
б) 5*(х-4)-(х+4)(х-4)=
в) (3-4х)*16х+(8х-3)²=

Answer 1

а)(c+4)*(c-1)-c^2 =3c-4

б)5*(x-4)-(x+4)(x-4) = -x^2+5x-4

в)(3-4x)*16x+(8x-3)^2 = 48x+512x^2.