Solving Ax² + Bx = C

Solving Ax² + Bx = C

9th Grade

11 Qs

quiz-placeholder

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Solving Ax² + Bx = C

Solving Ax² + Bx = C

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA-REI.B.4B, 8.EE.C.7B

Standards-aligned

Created by

Anthony Clark

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Can this quadratic be solved by BOTH square root method AND difference of squares?
16x2 - 25 = 0

Yes!

No - just square root method

No - just difference of squares method

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The first step in solving quadratic equations is to . . .

factor

write the equation in standard form

use quadratic formula

complete the square

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Determine the values of a, b, and c for the quadratic equation:

4x2 – 8x = 3


*Reminder: the equation MUST equal zero.

a = 4, b = -8, c = 3

a = 4, b =-8, c =-3

a = 4, b = 8, c = 3

a = 4, b = 8, c = -3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Use the quadratic formula to solve for x:

2x2 + 2x - 12 = 0

x = -2 x = 3

x = 2 x = 3

x = 2 x = -3

x = -2 x = -3

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve using the quadratic formula.
2x2 - 9x - 35 = 0

x = 7/2, x = -6

x = -5/2, x =5

x = -3/7, x =6

x = -5/2, x = 7

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Use the quadratic formula to solve for x:

x2 + 4x - 40 = -8

x = -10 & x = -4

x = -4 & x = 10

x = -8 & x = 4

x = 8 & x = -4

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What should you do first in solving this equation?

x2 + 6x - 13 = 3

Factor

Write down: a = 1, b = 6, c = -13

Subtract 3 from both sides.

Add 3 to both sides.

Tags

CCSS.HSA-REI.B.4B

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