1)(33+47)^2=80<span>^2=6400
2)(95-5)</span>^2=90<span>^2=8100</span>
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∛ 5X = 10
( ∛ 5X ) ^ 3 = 10 ^ 3
5X = 1000
X = 200
<span>2*(3-2х)=3х-4(1+3х)
2*3-2*2x=3x-4*1-4*3x
6-4x=3x-4-12x
-4x-3x+12x=-4-6
5x=-10
x=-10:5
х=-2</span>
Ответ:
(x+1)/(x-3)-7/x=1
(x^2+x)/x(x-3)-(7x-21)/x(x-3)=1
x^2-6x+21=x^2-3x
3x=21
x=7
Объяснение: