ПОМОГИТЕ! СРОЧНО! упростить:а) (4x-2x+y^2 / y^2-4x^2) - 1б) 6x / y-4x + 4x+y / 2x

ПОМОГИТЕ! СРОЧНО!
упростить:
а) (4x-2x+y^2 / y^2-4x^2) - 1
б) 6x / y-4x + 4x+y / 2x
- Предмет:
  Алгебра
- Автор:
  kit-kat
- 5 лет назад

Ответы 1

$\displaystyle a)..( \frac{4x-2x+y^{2} }{y^{2}-4x^{2}})-1= \frac{2x+y^{2}-y^{2}-4x^{2} }{(y-2x)(y+2x)}= \frac{2x(1-2x)}{(y-2x)(y+2x)}; \\ \\ \\ b).. \frac{6x}{y-4x}+ \frac{4x+y}{2x}= \frac{12 x^{2}+(4x+y)(y-4x) }{2x(y-4x)}= \\ \\ \frac{12 x^{2}+4xy-16 x^{2}+y^{2}-4xy}{2x(y-4x)}= \frac{(y-2x)(y+2x)}{2x(y-4x)};$
- Автор:
  angie
- 5 лет назад
- 0
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ПОМОГИТЕ! СРОЧНО! упростить:а) (4x-2x+y^2 / y^2-4x^2) - 1б) 6x / y-4x + 4x+y / 2x

Ответы 1

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ПОМОГИТЕ! СРОЧНО!
упростить:
а) (4x-2x+y^2 / y^2-4x^2) - 1
б) 6x / y-4x + 4x+y / 2x