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Solving quadratics with imaginary roots - Quad Formula

Authored by Wayground Content

Mathematics

10th - 11th Grade

CCSS covered

Used 12+ times

Solving quadratics with imaginary roots - Quad Formula
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x2+5x +8 =0x^2+5x\ +8\ =0  

Solve the given equation using the Quadratic Formula. Make sure you fully simplify your answer.

 5±572\frac{-5\pm\sqrt{57}}{2}  

 5±572\frac{5\pm\sqrt{57}}{2}  

 5±i72\frac{-5\pm i\sqrt{7}}{2}  

 5±i72\frac{5\pm i\sqrt{7}}{2}  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x2+13x 10 =7x-x^2+13x\ -10\ =7x  

Put the following quadratic into standard form.

 x2+13x 17 =0-x^2+13x\ -17\ =0  

 x2+20x 10 =0-x^2+20x\ -10\ =0  

 x2+13x 3 =0-x^2+13x\ -3\ =0  

 x2+6x 10 =0-x^2+6x\ -10\ =0  

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 3x23x +13 =03x^2-3x\ +13\ =0  

Solve the given equation using the Quadratic Formula. Make sure you fully simplify your answer.

 3±7i36\frac{-3\pm7i\sqrt{3}}{6}  

 3±7i36\frac{3\pm7i\sqrt{3}}{6}  

 3±i1636\frac{-3\pm i\sqrt{163}}{6}  

 3±i1636\frac{3\pm i\sqrt{163}}{6}  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify the values of A, B, and C


11r2 + 6r = 6

A=11, B=-6, C=-6

A=11, B=6, C=6

A=11, B=6, C=-6

A=1, B=6, C=-6

Tags

CCSS.HSA.REI.B.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Solve over the set of complex numbers:

2x2+18=0

3i2

-3i and 3i

9i

0 and 9

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is this?

This is the speed of light formula.
This is the quadratic formula.
This is the zero product property.
This is scary.

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A student is solving a quadratic equation using the quadratic formula. They have correctly gotten to this point and need to simplify completely. What is the correct final answer?

 1±322\frac{-1\pm3\sqrt{2}}{2}  

 1±62\frac{-1\pm\sqrt{6}}{2}  

 1±182\frac{-1\pm\sqrt{18}}{2}  

 1±362\frac{-1\pm\sqrt{36}}{2}  

Tags

CCSS.HSA-REI.B.4B

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