Question

va rog frumos urgent dau coroniță ​

Answer 1

Explicație pas cu pas:

N)

$( \sqrt{2 } + x) {}^{2}$

$( \sqrt{2} ) {}^{2} + 2 \times \sqrt{2} \times x + x { }^{2}$

$\sqrt{4} + 2 \sqrt{2} x + x {}^{2}$

$2 + 2 \sqrt{2} x + x {}^{2}$

O)

$( \sqrt{3 } + a) {}^{2}$

$( \sqrt{3} ) { }^{2} + 2 \times \sqrt{3} \times a + a {}^{2}$

$\sqrt{9} + 2 \sqrt{3} a + a {}^{2}$

$3 + 2 \sqrt{3} a + a {}^{2}$

T) (2/3x+3/5y)^2

(2/3x)^2+2*2/3x*3/5y+(3/5y)^2

4/9x^2+12/15xy+9/25y

U)

$( \sqrt{2} x + \frac{1}{ \sqrt{3} } )$

$( \sqrt{2} x) {}^{2} + 2 \times \frac{ \sqrt{2} }{1} \times \frac{1}{ \sqrt{3} } + ( \frac{1}{ \sqrt{3} } ) {?}^{2}$

$2x + \frac{ \sqrt{4} }{ \sqrt{3} } + \frac{1}{3}$

$2x + \frac{2}{ \sqrt{3} } + \frac{1}{3}$

$2x + \frac{2 \sqrt{3} }{3 } + \frac{1}{3}$

Sper că te-am ajutat!