Question

Упростить выражение(√5+√2)^2

Answer 1

$( sqrt{5}+ sqrt{2})^2=5+2 sqrt{10}+2=7+2 sqrt{10}$

Answer 2

$(x + y) {}^{2} = {x}^{2} + 2xy + {y}^{2}$

$( sqrt{5} )^{2} + 2 times sqrt{5 } times sqrt{2} + ( sqrt{y} )^{2}$
$5 + 2 sqrt{10} + 2$