Question

Calculeaza:a)(2x+√3)²
b)(1+√2)²
c)(√5+2)²
d)2√3+1)²
e)(√3-2)²
f)(2-√2)²

Answer 1

A). 4x^2+4rad3x+3
B). 1+2rad2+2= 3+2rad2
C). 5+4rad5+4= 9+4rad5
D). 4rad3+4rad3+1= 8rad3+1
E). 3-4rad3+4= 7-4rad3
F). 4-4rad2+4= 8-4rad2.

Answer 2

a) (2x + √3)² = 4x² +4√3x + 3.
b) (1 + √2)² = 1 + 2√2 + 2 = 3 + 2√2
c) (√5 + 2)² = 5 + 4√5 + 4 = 9 + 4√5
d) (2√3 + 1)² = 12 + 4√3 + 1 = 13 + 4√3
e) (√3 - 2)² = 3 - 4√3 + 4 = 7 + 4√3
f) (2 - √2)² = 4 + 4√2 - 2 = 2 + 4√2