Rozwiąz rownania pamietacaj p zastosowanie skroconego wzoru mnozenia: 2(x-2)² = (x-3)(x+3)-(8x- x ² -3) -3x(x+5)+(2x-1) ² = (x-3)(x+3)- (10x-13) 2(x-1)² = ( x+4)(x-4)- ( 1/2 x - x ² + 3) (x-3)² = ( x+2 ) (x-2) -(1,5x-4)

2(x-2)² = (x-3)(x+3)-(8x- x ² -3) 2(x²-4x+4)=x²-9-8x+x²+3 2x²-8x+8=2x²-8x-6 0=-14 -3x(x+5)+(2x-1) ² = (x-3)(x+3)- (10x-13) -3x²-15x+4x²-4x+1=x²-9-10x+13 x²-19x+1=x²-10x+4 9x=3 x=1/3 2(x-1)² = ( x+4)(x-4)- ( 1/2 x - x ² + 3) 2(x²-2x+1)=x²-16-1/2x+x²-3 2x²-4x+2=2x²-19-1/2x -3 1/2x=-17 x=4 6/7 (x-3)² = ( x+2 ) (x-2) -(1,5x-4) x²-6x+9=x²-4-1,5x+4 -4,5x=-9 x=2