Question

alguém sabeee? urgenteee​

Answer 1

a. (5 - x )² =

(5 - x) * (5 - x)

25 -5 x - 5 x + x²

x² - 10 x + 25

c. (x-y)² =

(x-y).(x-y) =

x² -2xy + y²

e. 2x-5)²=

2x²-2.2x.5+5²=

4x²-20x+25

g. (3x - 2y)=

(3−2).(3−2)=

3(3−2)−2(3−2)

92−6−2(3−2)

92−6−6+42

92−12+42