Question

2x^3y•(-1/✓2y) решите
плиз​

Answer 1

Răspuns:

$\mathbf{- \sqrt{2} x {}^{3} }$

Explicație pas cu pas:

$\mathbf{2x {}^{3}y \times ( - \frac{1}{ \sqrt{2}y } ) }$

$\mathbf{ - 2x {}^{3} \times \frac{1}{ \sqrt{2} } ; \: \: ( + )( - ) = ( - )}$

$\mathbf{ - \frac{2x {}^{3} \times 1}{ \sqrt{2} } = - \frac{2x {}^{3} }{ \sqrt{2} } }$

$\mathbf{rationalizam \: = \: - \frac{ 2x {}^{3} }{ \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } = - \frac{2 \sqrt{2} x {}^{3} }{ \sqrt{2} \sqrt{2} } }$

$\mathbf{ \:\boxed{ \mathbf{ - \sqrt{2} x {}^{3} } }}$

Bafta ! :)