Test: Quadratic Equations II - Ambitious

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Question 1:   Solve : (x5)(x+7)=0
{ x 1 =2 1 2 x 2 =3 1 2
{ x 1 =2 x 2 =3
{ x 1 =5 x 2 =7
{ x 1 =5 x 2 =7
Question 2:   Solve: 3(x+ 1 2 )(x1)=0
{ x 1 = 2 5 x 2 =1
{ x 1 =3 x 2 = 1 3
{ x 1 =1 x 2 =2
{ x 1 = 1 2 x 2 =1
Question 3:   Solve: x 2 +3x+3=0
{ x=1 x=2
x=1
No solution
x=2
Question 4:   Solve: x 2 +2x+1=0
x=1
x= 1 2
{ x 1 =1 x 2 =1
x=1
Question 5:   Solve: x 2 +x6=0
{ x 1 =3 x 2 =2
{ x 1 =2 x 2 =3
{ x 1 =5 x 2 =2
{ x 1 =6 x 2 =2
Question 6:   Solve: 3 x 2 4x+7=0
x= 3 4
{ x 1 = 1 3 x 2 =4
x=2
No solution
Question 7:   Solve: x 2 6x+9=0
x=1
No solution
x=3
x=2
Question 8:   Solve: x 2 +5x14=0
{ x 1 =6 x 2 =5
{ x 1 =7 x 2 =2
{ x 1 =5 x 2 =14
No solution
Question 9:   Solve: 2 x 2 3x4=0
{ x 1 3.11 x 2 0.93
{ x 1 1.71 x 2 0.24
{ x 1 1.78 x 2 4.06
{ x 1 2.35 x 2 0.85
Question 10:   Solve: 1 3 x 2 + 1 2 x 1 4 =0
{ x 1 0.37 x 2 1.26
{ x 1 0.4 x 2 1.9
{ x 1 0.29 x 2 0.61
{ x 1 1.03 x 2 2.15