Kwadratische vergelijkingen oplossen (7.4)

Los op: x²+3x-10 = 0

• x = -5 of x=2

• x=5 of x=-2

• x=-2 of x=-1

• x=-5 of x=-2

• x=5 of x=2

Los op: x²+7x+10 = 0

• x= -2 of x=-5

• x= 2 of x=5

• x=7 of x=3

• x=-7 of x=-3

Los op: x²-12x+20 = 0

• x=2 of x=10

• x=-2 of x=-10

• x=5 of x=4

• x=-5 of x=-4

Los op: x²+8x-20 = 0

• x=-10 of x=2

• x=10 of x=-2

• x=5 of x=-4

• x=-5 of x=4

Los op:

2x² - 6x = 0

• x = 0 of x = 3

• x= 0 of x= -3

• x=3

• x = -3

• x=2 of x=3

Los op:

x² + 3x = 0

• x = 0 of x=3

• x = 0 of x = -3

• x= -3

• x = 3