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1)
а) (x+3)^2=2x+6
б) (x+2)^2=43-6x
в) 4(x-1)^2=12x+3
г) (x-2)^2+24=(2+3x)^2

2)
а) (x-3) (x+3)=5x-13
б) 7(1-x)=(2x+3)(1-x)
в) -x(4x+1)=(x+2)(x-2)
г) (x+4)(2x-1)=x(3x+11)

3)
а) 2x^2+x/5=4x-2/3
б) x^2-4/3+4x=3
в) x^2-11/7=x-x^2/2
г)4x^2+x/3-5x-1/6=x^2+17/9
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