Fred's Online Solving Quadratic Equations by Factoring

Convert x² - 9x + 20 to factored form and solve.

• (x-10)(x+2); x = -2, 10
• (x+4)(x+5); x = -5, -4
• (x-4)(x-5); x = 4, 5
• Not factorable

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5
• x = 5 or x = -3
• x = -5 or x = 3
• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+12x+35=0 are

• x = -5 or x = -7
• x = 5 or x = 7
• x = -35 or x = -1
• x = -9 or x = -4

Tags

CCSS.HSA-REI.B.4B

Factor x² + 6x + 9 and solve for x. 

• (x+3)(x+3); x = -3
• (x+4)(x+5); x=-4, -5
• (x-3)(x-3); x=3
• Not factorable

Tags

CCSS.HSA-REI.B.4B

x² - 25

• ( x + 5 ) ( x - 5 ) 
• ( x - 5 ) ( x - 5 ) 
• ( x + 5 ) ( x + 5 ) 
• Prime

Tags

CCSS.HSA.APR.C.4

The solutions of the quadratic equation
x²-5x+6=0 are

• x=1 or x=-6
• x=3 or x=2
• x=-3 or x= 2
• x=-1 or x=6

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5
• x = 5 or x = -3
• x = -5 or x = 3
• x = -3 or x = -5

The solutions of the quadratic equation 
x²-3x-10=0 are

• x = 10 or x = -1
• x = 1 or x = -10
• x = -5 or x = 2
• x = 5 or x = -2

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²-6x+8=0 are

• x = -2 or x = -4
• x = 2 or x = 4
• x = 8 or x = -1
• x = 8 or x = 1

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+9x+18=0 are

• x = 3 or x = 6
• x = -2 or x = -9
• x = 2 or x = 9
• x = -3 or x = -6

Tags

CCSS.HSA-REI.B.4B