Which of the following shows the quadratic formula correctly used to solve the quadratic equation; -2x + 4x - 5 -(-2) + V42 - 4(2) (5)
O x=
2(4)
-4+V42-4(-2)(-5)
21-2)
0-2+42-52
4+V42-41-2)(-5)
OX=
21-2)

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Explain why the factor 1.5 is broke. into two numbers in the model.