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YanaSavenkova
@YanaSavenkova
August 2022
2
15
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ПОМОГИТЕ!)ЗАРАНИЕ СПАСИБО!)
^--Степень
/--Дробная черта
1)(a+3)^2/2a-4 * a^2-4/3a+9
2)m^2-4n^2/mn : m^2-4n^2/3n
3)p^2-q^2/2pq * 4p/p+q
4)x^2+4x/x^2-4 : 3x+12/x-2
5)3x^2-3y^2/x^2+ax : 6x-6y/x+a
6)(2x-u)^2 : 4x^3-xu^2/3
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dbookerkst
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25 votes
Thanks 36
granny23
1) Если я правильно понял, что перемножаются 2 дроби, то
(a+3)^2 a^2 -4 (a+3*(a+3)*(a-2)*(a+2) (a+3)*(a+2)
---------- * -------- = ----------------------------- = --------------
2a-4 3a+9 2*(a-2)*3*(a+3) 6
2) m^2 - 4n^2 m^2 -4n^2 (m^2 - 4n^2) * 3n 3
-------------- : ------------- = ---------------------- = ----
mn 3n mn* (m^2 - 4n^2) m
3) p^2-q^2 4p (p-q)*(p+q)*4p 2(p-q) 2p
---------- * ------ = -------------------- = ---------- = ---- - 1
2pq p+q 2pq*(p+q) q q
4) x^2+4x 3x+12 x*(x+4)*(x-2) x
--------- : --------- = ------------------------- = ---------
x^2-4 x - 2 (x-2)*(x+2)*3*(x+4) 3 (x-2)
5) 3x^2 - 3y^2 6x - 6y 3*(x-y)*(x+y)*(x+a) x+y
-------------- : ----------- = ------------------------ = -------
x^2+ax x+a x*(x+a)*6*(x-y) 2x
6) 4x^3 -xu (2x-u)*(2x-u)*3
(2x -u)^2 : ----------- = -------------------
3 x(4x^2-u)
Мне кажется какая-то ошибка в условии. Здесь нечего сокращать
4 votes
Thanks 9
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Answers & Comments
(a+3)^2 a^2 -4 (a+3*(a+3)*(a-2)*(a+2) (a+3)*(a+2)
---------- * -------- = ----------------------------- = --------------
2a-4 3a+9 2*(a-2)*3*(a+3) 6
2) m^2 - 4n^2 m^2 -4n^2 (m^2 - 4n^2) * 3n 3
-------------- : ------------- = ---------------------- = ----
mn 3n mn* (m^2 - 4n^2) m
3) p^2-q^2 4p (p-q)*(p+q)*4p 2(p-q) 2p
---------- * ------ = -------------------- = ---------- = ---- - 1
2pq p+q 2pq*(p+q) q q
4) x^2+4x 3x+12 x*(x+4)*(x-2) x
--------- : --------- = ------------------------- = ---------
x^2-4 x - 2 (x-2)*(x+2)*3*(x+4) 3 (x-2)
5) 3x^2 - 3y^2 6x - 6y 3*(x-y)*(x+y)*(x+a) x+y
-------------- : ----------- = ------------------------ = -------
x^2+ax x+a x*(x+a)*6*(x-y) 2x
6) 4x^3 -xu (2x-u)*(2x-u)*3
(2x -u)^2 : ----------- = -------------------
3 x(4x^2-u)
Мне кажется какая-то ошибка в условии. Здесь нечего сокращать