Question

Упростите выражение:
(f-4)(f-2)-47(2f-7)=
4(c+6)²-48e=
4d(d-3)-(d-6)²=

Answer 1

(f-4)(f-2)-47(2f-7)=f²-2f-4f+8-94f+329=f²-100f+337
4(c+6)²-48c=4(c²+12c+36)-48c=4c²+48c+144-48c=4c²+114
4d(d-3)-(d-6)²=4d²-12d-(d²-12d+36)=4d²-12d-d²+12d-36=3d²-36