Question

Calculeaza:
a.(1+2)^2
b.(2+√3)^2
c.(√5+2)^2
d.(2√3+1)^2
e.√3-2)^2
f.(2-√2)^2
g.(3-√3)^2
h.(3√2-1)^2
i.(1+√3)(1-√3)
j.(3√2-1)(3√2+1)
k.(√3+5)(5-√3)
l.(2√2-3)(2√2+3)
Multumesc.

Answer 1

Iti dau decat un exemplu.
${(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}$
${(2 + \sqrt{3} )}^{2} = {2}^{2} + 4 \sqrt{3} + { \sqrt{3} }^{2}$
$7 + 4 \sqrt{3}$