\( x^2-1=0 \)
\( x=0 \)
\( x=\pm1 \)
\( x^2+10x+16=0 \)
\( x=-8,x=-1 \)
\( x=-8,x=-2 \)
\( x^2+10x-24=0 \)
\( x=1,x=12 \)
\( x=2,x=-12 \)
\( x^2-19x+60=0 \)
\( x=15,x=4 \)
\( x=5,x=3 \)
\( x^2-2x-3=0 \)
\( x=3,x=-1 \)
\( x=-3,x=1 \)
x2−1=0 x^2-1=0 x2−1=0
x=±1 x=\pm1 x=±1
x2+10x+16=0 x^2+10x+16=0 x2+10x+16=0
x=−8,x=−2 x=-8,x=-2 x=−8,x=−2
x2+10x−24=0 x^2+10x-24=0 x2+10x−24=0
x=2,x=−12 x=2,x=-12 x=2,x=−12
x2−19x+60=0 x^2-19x+60=0 x2−19x+60=0
x=15,x=4 x=15,x=4 x=15,x=4
x2−2x−3=0 x^2-2x-3=0 x2−2x−3=0
x=3,x=−1 x=3,x=-1 x=3,x=−1
\( x^2-3x-18=0 \)
\( x=-3,x=6 \)
\( x=-6,x=3 \)
\( x^2-5x-50=0 \)
\( x=10,x=-5 \)
\( x=-10 \)
\( x^2+6x+9=0 \)
\( x=-3 \)
\( x=3 \)
\( x^2-7x+12=0 \)
\( x=3,x=4 \)
\( x=-3,x=4 \)
x2−3x−18=0 x^2-3x-18=0 x2−3x−18=0
x=−3,x=6 x=-3,x=6 x=−3,x=6
x2−5x−50=0 x^2-5x-50=0 x2−5x−50=0
x=10,x=−5 x=10,x=-5 x=10,x=−5
x2+6x+9=0 x^2+6x+9=0 x2+6x+9=0
x=−3 x=-3 x=−3
x2−7x+12=0 x^2-7x+12=0 x2−7x+12=0
x=3,x=4 x=3,x=4 x=3,x=4
\( x^2-8x+16=0 \)
\( x=8 \)
\( x=4 \)
\( x^2+9x+20=0 \)
\( x=-4,x=-5 \)
\( x=4,x=5 \)
\( x^2+x-2=0 \)
\( (x-1)(x+2)=0 \)
\( (x+1)(x-2)=0 \)
x2−8x+16=0 x^2-8x+16=0 x2−8x+16=0
x=4 x=4 x=4
x2+9x+20=0 x^2+9x+20=0 x2+9x+20=0
x=−4,x=−5 x=-4,x=-5 x=−4,x=−5
x2+x−2=0 x^2+x-2=0 x2+x−2=0
(x−1)(x+2)=0 (x-1)(x+2)=0 (x−1)(x+2)=0