Quadraatic Review

Review for Quadratic Unit

Other

4 plays

12 questions

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•almost 7 years ago

Question 1

Multiple Choice

1 point

Simplify: √45

A.3√5

B.5√3

C.22.5

D.6.71

Question 2

Multiple Choice

1 point

Simplify (4 + 3i) - (5 + 8i)

A.4

B.-20 - 24i

C.-1 - 5i

D.-1 + 11i

Question 3

Short Answer

1 point

Factor: x^2-12x+27

Question 4

Short Answer

1 point

Factor: x^2 + 8x - 20

Question 5

Multiple Choice

1 point

Solve: 3x^2 - 15 = 21

A.x= √12

B.x = 12

C.x = 6

D.x= ±√12

Question 6

Multiple Choice

1 point

Solve: x^2 + 6x - 1 = 0

A.x= 3±√8

B.x= -3±√10

C.x= -3±√8

D.x= 3±√10

Question 7

Multiple Choice

1 point

Write the equation for the parabola with a focus of (8, -2) and a directrix of y = 4.

A.y = -1/12 (x - 8)^2 + 1

B.x = -1/12 (y - 1)^2 + 8

C.y = 1/12 (x - 8)^2 + 1

D.x = 1/12 (y -1)^2 +8

Question 8

Multiple Choice

1 point

Simplify (2 + 3i)(4 - 5i)

A.8 - 15i

B.6 - 2I

C.23

D.23 + 2i

Question 9

Short Answer

1 point

Factor: 25x^2 - 64

Question 10

Multiple Choice

1 point

Simplify: √(-363)

A.-11√3

B.11√3

C.11i√3

D.3i√11

Question 11

Short Answer

1 point

Factor: 6x^2 + 19x + 10

Question 12

Short Answer

1 point

Solve: x^2 - 7x - 18 = 0