Solving Equations and Roots

Solving Equations and Roots

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers solving equations using square and cube roots. It explains the process of finding solutions for equations involving square roots, which result in both positive and negative solutions, and cube roots, which result in only positive solutions. The tutorial also provides guidance on using scientific calculators to solve these equations and includes practice problems to reinforce learning. Additionally, it discusses real-life applications of these mathematical concepts, such as calculating dimensions in practical scenarios.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the solution to the equation x² = 25?

x = 5

x = -5

x = ±5

x = 0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve x³ = 27 using cube roots?

x = 3

x = 9

x = ±3

x = -3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which tool is recommended for calculating cube roots?

Basic calculator

Abacus

Scientific calculator

Graphing calculator

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the area of a square photo is 9 square inches, what is the length of one side?

9 inches

-3 inches

3 inches

±3 inches

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the square root of 81?

0

-9

±9

9

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cube root of 1000?

-10

10

100

±10

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a real-life scenario, why might a negative solution be disregarded?

Negative solutions are not applicable in real-life measurements

Negative solutions are too complex

Negative solutions are always incorrect

Negative numbers are not real

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