How to solve an equation with an expression raised to a fractional power

How to solve an equation with an expression raised to a fractional power

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

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The video tutorial explains the process of solving equations involving rational exponents. It emphasizes the importance of isolating powers before solving and provides a detailed explanation of rational exponents and roots. The tutorial guides through simplifying expressions and solving equations with exponents, highlighting the need to consider both positive and negative solutions. The video concludes with verifying the solutions to ensure accuracy.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equivalent expression for X + 4 raised to the 2/3 power?

The cube root of (X + 4) squared

The fourth root of X + 4

The square root of X + 4

X + 4 squared

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't you distribute a number inside a root?

Because it simplifies the expression incorrectly

Because it is mathematically incorrect to do so

Because roots and exponents are unrelated

Because it changes the value of the expression

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when you raise an exponent to another power?

You divide the powers

You multiply the powers

You subtract the powers

You add the powers

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 4 raised to the third power?

128

32

16

64

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions for X in the equation X + 4 = ± 8?

X = 8 and X = -8

X = 4 and X = -12

X = 0 and X = -16

X = 12 and X = -4