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Miritaflorin10
a fost răspuns

Calculați :
PLEASEEEEE ❗❗❗❗❗

Calculați PLEASEEEEE class=

Răspuns :

Renatemambouko
6√8-3√32+9√50+5√18=
=6√2³-3√2⁴×2+9√5²×2+5√2×3²=
=12√2-12√2+45√2+15√2=
=60√2

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Prelucrez fiecare radical:

[tex]\it \sqrt8 = \sqrt{4\cdot2} =2\sqrt2 \\\;\\ \sqrt{32} = \sqrt{16\cdot2} = 4\sqrt2 \\\;\\ \sqrt{50} = \sqrt{25\cdot2} = 5\sqrt2 \\\;\\ \sqrt{18}=\sqrt{9\cdot2} = 3\sqrt2 \\\;\\ Acum,\ \ avem: \\\;\\ 6\cdot2\sqrt2-3\cdot4\sqrt2+9\cdot5\sqrt2+5\cdot3\sqrt2= \\\;\\ =12\sqrt2-12\sqrt2+45\sqrt2+15\sqrt2 =60\sqrt2.[/tex]

La final, am redus primii 2 termeni (opuși !).

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