Question

√15.(√3+√5)=
me ajudem por favor ​

Answer 1

Explicação passo-a-passo:

√15.(√3 + √5)

= √45 + √75

= 3√5 + 5√3

Answer 2

Propriedades importantes:

• $a(b+c) = ab+ac$

• $\sqrt{a.b}=\sqrt{a}.\sqrt{b}$

$\sqrt{15}(\sqrt{3}+\sqrt{5})\\\\\sqrt{15}.\sqrt{3}+\sqrt{15}.\sqrt{5}\\\\\sqrt{45}+\sqrt{75}\\\\\sqrt{9.5}+\sqrt{3.25}\\\\\sqrt{9}.\sqrt{5}+\sqrt{3}.\sqrt{25}\\\\3\sqrt{5}+5.\sqrt{3}$