(x-3+x-2+x-1)/(x-1)(x-2)(x-3)≤1
(3x-6)/(x-1)(x-2)(x-3)≤1
3(x-2)/(x-1)(x-2)(x-3)≤1
3/(x-1)(x-3) -1≤0
(3-x²+4x-3)/(x-1)(x-3)≤0
(4x-x²)/(x-1)(x-3)≤0
x(4-x)/(x-1)(x-3)≤0
x=0 x=4 x=1 x=3
_ + _ + _
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0 1 3 4
x∈(-∞;0] U (1;3) U [4;∞)
16x+6x-x^2=0
22x - x^2 = 0
x(22-x) = 0
x=0 и 22-x=0
-x=-22
x=22
1)
4х^2 - 4у^2=(2х-2у)(2х+2у)
2)
9а^2 - 6ас + с^2=(3а-с)^2=(3а-с)(3а-с)
3)
45у+6р-3ур-90=3(15у+2р-ур-30)
В) (∛27a⁵/b²)·(∛ab¹¹/8)=∛3³·a⁵·a·b¹¹/b²·2³=3/2·∛a⁸·b⁹=3/2·a²·b³
г) ⁴√b÷√b³·√√b¹³=⁴√b÷⁴√b⁶·⁴√b¹³=⁴√b·b¹³/b⁶=⁴√b¹⁴/b⁶=⁴√b¹⁴⁻⁸=⁴√b⁸=b²