Question

ДОКАЖИТЕ ТОЖДЕСТВО:
4x^2. 12x^3 2x^2. 1
_____ : ________ * ______ = ____

2x-y 4x^2-y^2. 6x^2+3xy. 9

Answer 1

$frac{4x^2}{2x-y}: frac{12x^3}{4x^2-y^2}* frac{2x^2}{6x^2+3xy}= frac{1}{9} \frac{4x^2}{(2x-y)}* frac{(2x-y)(2x+y)}{12x^3}* frac{2x^2}{6x^2+3xy}= frac{1}{9} \frac{2x+y}{3x}* frac{2x^2}{6x^2+3xy}= frac{1}{9} \frac{2x+y}{3x}* frac{2x^2}{3x(2x+y)}= frac{1}{9} \ frac{2x^2}{9x^2}= frac{1}{9} \ frac{2}{9} neq frac{1}{9}$

Answer 2

Спасибо большоееее: ***