Question

спасите!

Записать выражение (3-x)² - (x-3)(x+3) +5x +22

Answer 1

(3-х)²-(х-3)(х+3)+5х+22=
=9-6х+х²-(х²-9)+5х+22=
=9-6х+х²-х²+9+5х+22=
=-х+40

Answer 2

(3-x)² - (x-3)(x+3) +5x +22=9-6x+x²-x²+9+5x+22=-x+40