Question

urgent ..............​

Answer 1

Răspuns:

√2+√8-√18+√16 = √2+2√2-3√2+4 = 0+4 = 4

√3+√12+√27-√75 = √3+2√3+3√3-5√3 = √3

2√2+5√8+6√18 = 2√2+10√2+18√2 = 30√2

√6•√8:√3 = √6•8:3 = √16 = 4

EVERGREEN

Answer 2

Răspuns:

1.

$\sqrt{2} + \sqrt{8} - \sqrt{18} + \sqrt{16} = \\ \\ = \sqrt{2} + 2 \sqrt{2} - 3 \sqrt{2} + 4 = \\ \\ = 3 \sqrt{2} - 3 \sqrt{2} + 4 = \\ \\ = 4$

2.

$\sqrt{3} + \sqrt{12} + \sqrt{27} - \sqrt{75} = \\ \\ = \sqrt{3} + 2 \sqrt{3} + 3 \sqrt{3} - 5 \sqrt{3} = \\ \\ = 6 \sqrt{3} - 5 \sqrt{3} = \\ \\ = \sqrt{3}$

3.

$2 \sqrt{2} + 5 \sqrt{8} + 6 \sqrt{18} = \\ \\ = 2 \sqrt{2} + 10 \sqrt{2} + 18 \sqrt{2} = \\ \\ = 30 \sqrt{2}$

4.

$\sqrt{6} \times \sqrt{8} \div \sqrt{3} = \\ \\ = \sqrt{48} \div \sqrt{3} = \\ \\ = \sqrt{16} = \\ \\ = 4$

Succes! ♡︎♥︎♡︎