2-5 Practice

Last updated almost 3 years ago

20 questions

Question 20

20.

Who is correct about the solution to x2 = 7x

A. Elena: x = 7 is the only solution.

B. Lin: x = 0 and x = 7 are both solutions.

C. Neither: they are both incorrect.

Question 1

Two numbers multiply to -40 and add to -6. What is one of the numbers?

Question 2

What is the other number?

Question 3

Two numbers multiply to -40 and add to 6. What is one of the numbers?

Question 4

What is the other number?

Question 5

Two numbers multiply to -36 and add to 9. What is one of the numbers?

Question 6

What's the other number?

Question 7

Two numbers multiply to -36 and add to -5. What is one of the numbers?

Question 8

What's the other number?

Question 9

Draw a diagram to show that (x - 5)(x + 8) is equivalent to x2 + 3x - 40.

Question 10

10.

(x _______ 18)(x _______ 3) = x2 - 15x - 54

Question 11

11.

(x _______ 18)(x _______ 3) = x2 + 21x + 54

Question 12

12.

(x _______ 18)(x _______ 3) = x2 + 15x - 54

Question 13

13.

(x _______ 18)(x _______ 3) = x2 - 21x + 54

Question 14

14.

Match each quadratic expression in standard form with its equivalent expression in factored form.

Draggable item		Corresponding Item
x2 + 12x + 35		(x + 5)(x - 7)
x2 + 2x - 35		(x + 5)(x + 7)
x2 - 2x - 35		(x - 5)(x + 7)
x2 - 12x + 35		(x - 5)(x - 7)

Question 15

15.

Rewrite x2 - 3x - 28 in factored form.

Question 16

16.

Rewrite x2 + 3x - 28 in factored form.

Question 17

17.

Rewrite x2 +12x - 28 in factored form.

Question 18

18.

Rewrite x2 - 28x - 60 in factored form.

Question 19

19.

Which equation has exactly one solution?

A. x2 = -4

B. (x + 5)2 = 0

C. (x + 5)(x - 5) = 0

D. (x + 5)2 = 36

Question 20

20.

Who is correct about the solution to x2 = 7x

A. Elena: x = 7 is the only solution.

B. Lin: x = 0 and x = 7 are both solutions.

C. Neither: they are both incorrect.

Question 1

Two numbers multiply to -40 and add to -6. What is one of the numbers?

Question 2

What is the other number?

Question 3

Two numbers multiply to -40 and add to 6. What is one of the numbers?

Question 4

What is the other number?

Question 5

Two numbers multiply to -36 and add to 9. What is one of the numbers?

Question 6

What's the other number?

Question 7

Two numbers multiply to -36 and add to -5. What is one of the numbers?

Question 8

What's the other number?

Question 9

Draw a diagram to show that (x - 5)(x + 8) is equivalent to x2 + 3x - 40.

Question 10

10.

(x _______ 18)(x _______ 3) = x2 - 15x - 54

Question 11

11.

(x _______ 18)(x _______ 3) = x2 + 21x + 54

Question 12

12.

(x _______ 18)(x _______ 3) = x2 + 15x - 54

Question 13

13.

(x _______ 18)(x _______ 3) = x2 - 21x + 54

Question 14

14.

Match each quadratic expression in standard form with its equivalent expression in factored form.

Draggable item		Corresponding Item
x2 + 12x + 35		(x + 5)(x - 7)
x2 + 2x - 35		(x + 5)(x + 7)
x2 - 2x - 35		(x - 5)(x + 7)
x2 - 12x + 35		(x - 5)(x - 7)

Question 15

15.

Rewrite x2 - 3x - 28 in factored form.

Question 16

16.

Rewrite x2 + 3x - 28 in factored form.

Question 17

17.

Rewrite x2 +12x - 28 in factored form.

Question 18

18.

Rewrite x2 - 28x - 60 in factored form.

Question 19

19.

Which equation has exactly one solution?

A. x2 = -4

B. (x + 5)2 = 0

C. (x + 5)(x - 5) = 0

D. (x + 5)2 = 36