인식 분해법으로 다음 방정식을 푸세요! 1 (2x+3) ² -2x-3 = 0 2(2x-1)²-x²=0 32y(2+y)=-(y+2) 4(y-1) ² +2y(y-1)=0

인식 분해법으로 다음 방정식을 푸세요! 1 (2x+3) ² -2x-3 = 0 2(2x-1)²-x²=0 32y(2+y)=-(y+2) 4(y-1) ² +2y(y-1)=0

1(2x+3)²-2x-3=0 해석(2x+3)² = 2x+3 2x+3=0 또는 2x+3=1 득 x= -3/2 또는 x =-12 (2x-1)²-x²=0 분산 해제 (2x-1-x)(2x-1+x)=0 즉(x-1)(3x-1)=0이면 x=1 또는 x=1/332y(2+y)=-(y+2)
1(2x+3)²-2x-3=(2x+3)²-(2x+3)=(2x+3)*(2x+3-1)=(2x+3)*(2x+2)=0,x1=-3/2;x2=-1.
2(2x-1)²-x²=4x²-4x+1-x²=3x²-4x+1=3x²-3x-x+1=3x(x-1)-(x-1)=(x-1)*(3x-1)=0,x1=1;x2.펼치다
1(2x+3)²-2x-3=(2x+3)²-(2x+3)=(2x+3)*(2x+3-1)=(2x+3)*(2x+2)=0,x1=-3/2;x2=-1.
2(2x-1)²-x²=4x²-4x+1-x²=3x²-4x+1=3x²-3x-x+1=3x(x-1)-(x-1)=(x-1)*(3x-1)=0,x1=1; x2=1/3.
32y(2+y)=-(y+2), 2y(2+y)+(y+2)=(y+2)*(2y+1)=0, y1=-2; y2=-1/2.
4(y-1)²+2y(y-1)=(y-1)*(y-1+2y)=(y-1)*(3y-1)=0;y1=1;y2=1/3.거두다