Solving Quadratics 4 Methods

When will a quadratic equation have no solution?

• When it does not equal 0.

• When there is a negative in the square root.

• When there is a bx term.

• When there is no product/sum numbers.

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Which of the following cannot be solved with the Square Root method?

• x²-9=0

• x²-15=0

• x²-9x=0

• 6x²-15=0

Tags

CCSS.HSA-REI.B.4B

What is the first step to solving x²-9x=10 with Factoring?

• Look for 2 numbers whose sum is -9 and product is 10.

• Subtract 10 from both sides.

• Divide -9 by 2 and square the answer.

• Look for 2 numbers whose sum is 10 and product is -9.

Tags

CCSS.HSA-REI.B.4B

When using the Quadratic Formula method, what are a, b, and c for the equation: 9x²-x+7=2?

• a=9, b = -1, c =7

• a=1, b = 0, c =7

• a=9, b = -1, c =5

• a=9, b = 7, c =2

Tags

CCSS.HSA-REI.B.4B

When using the Completing the Squares method, what number would fill in the blank:

x²+12x ______ = 8 + _______

• 6

• 36

• 12

• 16

Tags

CCSS.HSA-REI.B.4B

Using the Square Root method, what is the first step to solving the equation: 8x²+9=10

• Subtract 10 from both sides

• Divide by 8

• Subtract 9 from both sides

• Take the square root of both sides.

Tags

CCSS.HSA-REI.B.4B

When using the Quadratic Formula method, what are a, b, and c for the equation: 9x²-x= 0?

• a=9, b = -1, c =0

• a=1, b = 0, c =0

• a=9, b = 0, c =0

• a=9, b = 1, c =0

Tags

CCSS.HSA-REI.B.4B

Which method will work well for ANY quadratic equation?

• Factoring

• Square Root

• Completing the Sqare

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B