Best Methods Quadratics

Solve the equation by completing the square and then finding the roots. 
x²+ 6x - 4 = 36

• x = -7, 7

• x = 4, -10

• x = -4 +- √7

• x = 10, -4

Tags

CCSS.HSA-REI.B.4B

What method would be best to solve the quadratic?

• Completing the square, since a = 1 and b is even

• Factoring, since the discriminant is a perfect square

• Square roots, since there is no "x" term

• Quadratic Formula, since no other method works

Tags

CCSS.HSA-REI.B.4B

What method would be best to solve the quadratic?

• Completing the square, since a = 1 and b is even

• Factoring, since the discriminant is a perfect square

• Square roots, since there is no "x" term

• Quadratic Formula, since no other method works

Tags

CCSS.HSA-REI.B.4B

What method would be best to solve the quadratic?

• Completing the square, since a = 1 and b is even

• Factoring, since the discriminant is a perfect square

• Square roots, since there is no "x" term

• Quadratic Formula, since no other method works

Tags

CCSS.HSA-REI.B.4B

What method would be best to solve the quadratic?

• Completing the square, since a = 1 and b is even

• Factoring, since the discriminant is a perfect square

• Square roots, since there is no "x" term

• Quadratic Formula, since no other method works

Tags

CCSS.HSA-REI.B.4B

When would you complete the square?

• When the discriminant is a perfect square

• When there is no "x" term

• When a = 1 and b is even

• When no other method works

Tags

CCSS.HSA-REI.B.4B

When would you factor?

• When the discriminant is a perfect square

• When there is no "x" term

• When a = 1 and b is even

• When no other method works

Tags

CCSS.HSA-REI.B.4B

When would you use the quadratic formula?

• When the discriminant is a perfect square

• When there is no "x" term

• When a = 1 and b is even

• When no other method works

Tags

CCSS.HSA-REI.B.4B

What should you do first if solving this equation using the FACTORING method?

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

What is this formula?

• This is the speed of light formula.

• This is the quadratic formula.

• This is the zero product property.

• This is scary.

Tags

CCSS.HSA-REI.B.4B