Solving Quadratics and Complex Numbers

Solve (2x+1)(x-5)=0.

• -1/2 or 5

• 1/2 or -5

• -2 or 5

• 2 or -5

Tags

CCSS.HSA-REI.B.4B

Solve x²-5x+4=0.

• 1 or 4

• -1 or -4

• 3 or 2

• -3 or -2

Tags

CCSS.HSA-REI.B.4B

Solve 3x² +22x + 7=0.

• -1/3 or -7

• -1 or -7

• -3 or -7

• 3 or 7

Tags

CCSS.HSA-REI.B.4B

What are the solutions of x²-4x=0?

• 0 or 4

• 0 or -4

• 4

• -4

Tags

CCSS.HSA-REI.B.4B

What are the roots of y = x²-49

• 7 or -7

• 7

• -7

• No solution

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Where are the solutions of a quadratic equation located on a graph of a parabola?

• At the x-intercepts.

• At the y-intercept.

• At the vertex

• In the first quadrant.

(2-3i)+(9+11i)

• 11+8i

• 9+10i

• 7+7i

• 10+9i

Tags

CCSS.HSN.CN.A.2

(6-7i)-(3-8i)

• 3+i

• 3-15i

• 9+i

• 9-15i

Tags

CCSS.HSN.CN.A.2

(6i-5)(2i+3)

Completely simplify!

• -27+8i

• -12i-15

• 12i²+8i-15

• -6i-15

Tags

CCSS.HSN.CN.C.8

(2i)(3i)(7i)

Completely simplify!

• -42i

• 42i

• -42

• 42

Tags

CCSS.HSN.CN.A.2