Solving Quadratics by Graphing, Table, Factoring, and Square Roots

Which equation matches the solutions {-7,5} ?

• (x+5)(x-7)=0

• (x-5)(x+7)=0

• (x+5)(x+7)=0

• (x-5)(x-7)=0

When does the ball hit the ground?

• ~ 5 seconds

• ~ 6 seconds

• ~ 7 seconds

• ~ -2 seconds

• ~ 4 seconds

Which equation(s) can be solved with Square Roots? (Select all that apply)

• 3x²+x=16

• 4x²-16=0

• (x-3)(x+4)=10

• 1/2x²=18

What is the square root of 100?

• 50

• 25

• Not a perfect square

• 10

When solving by factoring, after making your product/sum table and factoring until you have two sets of parentheses, what do you set your two factors equal to and solve for?

• set them equal to 0 and keep the x next to the number

• set them equal to 1 and find your solution

• set them equal to 0 and solve for x

• graph the factors and write the answers

Which method requires the equation to start in standard form (equal to 0)?

• Completing the Square

• Factoring

In order to solve by factoring, you put the equation in standard form, find your a, b, and c, and then...

• take half of b

• divide by 4

• take the square root

• make a product/sum table

How do you find the product for your product/sum table when solving by factoring?

• multiple b times c

• multiply a times c

• multiply a times b

• use b

• factoring formula

• completing the square formula

• quadratic formula

• taking the square roots formula

When you square root a squared term, what happens?

• You get x

• The square root cancels out the squared, leaving you with the original term

• The square root squares, resulting in two of the terms

• The terms multiply together