Mathematical Relationships and Expressions

Mathematical Relationships and Expressions

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explores a problem from the 2019 Italian math olympiad, focusing on proving that p² + qⁿ can never be a square number. The instructor begins by rearranging p as the difference of two squares and factorizing it. The video then delves into conditions when p and q are prime, exploring special cases and completing the proof. The tutorial concludes by considering all possibilities and confirming the impossibility of p² + qⁿ being a square number.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What year was the Italian Math Olympiad problem discussed in the video?

2021

2020

2019

2018

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical expression is used to rearrange p in the problem?

Product of two primes

Sum of two cubes

Sum of two squares

Difference of two squares

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between p and q when p is expressed as 2q + 1?

p = q - 1

p = 2q + 1

p = q + 2

p = 2q - 1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When considering p² + qⁿ as a square, what is qⁿ expressed as?

Sum of two squares

Difference of two squares

Sum of two cubes

Product of two primes

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of q when it is deduced that q = 2?

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of p when q is found to be 2?

3

6

4

5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must (m + 5) and (m - 5) be when expressed as powers of 2?

Both even

Both prime

Both odd

Both powers of 2

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