Solve the Secret Country by Doing Math Problems #2

Solve these math problems as fast as you can. Once you solve a problem, the next one will be revealed. Completing every fifth problem reveals a clue pertaining to the country to be guessed. Once you've finished all the math problems, guess the country to end the quiz!

The previous quiz in this series can be found here (#1)

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Last updated: May 17, 2022

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First submitted	May 14, 2022
Times taken	748
Average score	34.6%
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Problem	Solution
Evaluate:
14²	196
19²	361
28²	784
41²	1681
62²	3844
Evaluate:
8³	512
7³	343
11³	1331
9³	729
2² × 4³	256
Differentiate:
2x² + 1	4x
5x³	15x²
3x² + x + 1	6x + 1
7x² + 5x + 6	14x + 5
x⁴ + 5x³	4x³ + 15x²
Differentiate:
(x + 1)²	2x + 2
(x + 1)(x − 2)	2x − 1
(x + 3)(x + 2)	2x + 5
(x − 2)(x + 4)	2x + 2
x(x + 7)	2x + 7
Integrate:
50	50x + c
18x	9x² + c
6x + 5	3x² + 5x + c
9x² + 7	3x³ + 7x + c
(3x + 1)²	3x³ + 3x² + x + c

Clues

It is located in Europe

... it has a population of more than 10 million

... its land area is larger than 100,000 km²

... it is NOT landlocked

... and Wales is one of its constituent countries

SECRET COUNTRY

United Kingdom

Level 65

Mar 15, 2024

Make this quiz like 15 minutes and I will nominate. Not gonna lie, I got PTSD when I saw "differentiate" and then I nearly curled up in a ball in the corner when I saw "integrate". Luckily the problems were simple enough to zoom through it. Also, might want to explain how to enter the derivative and integral questions

Level 34

Apr 2, 2024

Bro, increase the timer smh

It impossible