Quadratic Equation and Expression

What is one of the solutions to this equation?
(2x - 1)² = 49

• 7

• -7

• -4

• -3

Write the following quadratic expression in completed square form...

x² + 6x = 5

• (x + 3)² = 5

• (x + 6)² = 9

• (x + 3)² = 14

• (x + 6)² = 14

Write the following quadratic expression in completed square form... x² + 4x + 10

• (x + 4)² + 6

• (x + 2)² + 6

• (x + 4)² - 6

• (x + 2)² - 6

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.

Solve the following for x by using the Quadratic Formula

2x²+6x=7

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Solve the following quadratic equation...

x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

If 3+2i is one solution of a quadratic equation, then the other solution of this quadratic equation is

• 2-3i

• 3+2i

• 1/3 -1/2i

• 3-2i

Fill the blank spaces to complete the perfect square trinomial

x²-18x+____=(x- ____)²

• 9 and 3 respectively

• 81 and 9 respectively

• -9 and -3 respectively

• -81 and -9 respectively

What should you do first in solving this equation?
x² + 6x - 13 = 3

• 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.

Solve by factoring: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7