(X-3)²-16=0(X-3)= ±4X1 = 1, X2 = -1 (X+1)(X+3)=6X+4X²+4X+3=6X+4X²-2X-1=0(X-1)²=2X1=√2+1 X2=-√2+1
(1) (x-3)²-16=0(x-3)²=16x-3=±4x=3±4x1=-1x2=6(2) (x+1)(x+3)=6x+4x²+4x+3-6x=4x²-2x=1(x-1)²=1+1x-1=±√2x=1±√2x1=1-√2x2=1+√2
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