Question

Exercicurs
S.) Colcule:
(3 + x²
D) (x + 5)2
(X + x)²
d) (x + 2)²
e) (3x+ 22
& (2x + 1)²
C) 5+ 3x)2
h (2x + y2
.) + u572
I) (lox+r?
1.13x+ 3x)²
in 1.5 tn)?
nil.3x+5)
O lot abl?
R) (x + xy?
f) (9² + 1)²
E arcicias
& (64-u)?​

Answer 1

Resposta:

(3+x).(3+x)

9+3x+3x+x²

9+6x+x²

b) (x+5).(x+5)

x²+5x+5x+25

x²+10x+25

c) (x+y).(x+y)

x²+xy+xy+y²

x²+2xy+y²

d) (x+2).(x+2)

x²+2x+2x+4

x²+4x+4

e) (3x+2).(3x+2)

9x²+6x+6x+4

9x²+12x+4

f) (2x+1).(2x+1)

4x²+2x+2x+2

4x²+4x+2

g) (5+3a).(5+3a)

25+15a+15a+9a²

25+30a+9a²

h) (2a+x).(2a+x)

4a²+2ax+2ax+x²

4a²+4ax+x²