
Algebraic Unions
Authored by Amin Darabi
Mathematics
11th Grade
13 Questions

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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Aiden, Maya, and Charlotte در جستجوی گنج هستند. آنها یک معما پیدا میکنند که میگوید '3x + 5 = 20'. میتوانید به آنها کمک کنید که برای 'x' حل کنند تا گنج را پیدا کنند؟
x = 5
x = 10
x = 3
x = 7
Answer explanation
To solve the equation 3x + 5 = 20, we need to isolate x. Subtracting 5 from both sides gives us 3x = 15. Dividing both sides by 3, we find x = 5. Therefore, the correct choice is x = 5.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Liam, Benjamin, and Kai در یک جستجوی گنج هستند. آنها یک یادداشت مرموز با عبارت x^2 + 5x + 6 پیدا کردند و آنها باور دارند که این یک نکته است. آیا میتوانید به آنها کمک کنید تا این عبارت را به عوامل تجزیه کنند و گنج را پیدا کنند؟
(x + 2)(x + 3)
(x + 4)(x + 2)
(x + 1)(x + 6)
(x + 3)(x + 3)
Answer explanation
The correct factorization of the given expression is (x + 2)(x + 3), which matches the first answer choice. This factorization helps in finding the treasure.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
الیجا، بنیامین و دیوید در یک رقابت دوستانه ریاضی هستند. الیجا چالشی به بنیامین و دیوید میدهد: 'آیا میتوانید عبارت (2x + 3)(x - 4) را سادهسازی کنید؟' کدام یک از آنها اولین نفری خواهد بود که پاسخ صحیح را دریافت میکند؟
۲x^۲ - ۵x - ۱۲
۴x^۲ - ۵x - ۱۲
۲x^۲ - ۱۱x - ۱۲
۲x^۲ + ۱۱x - ۱۲
Answer explanation
The correct answer is ۲x^۲ - ۵x - ۱۲ because it is the only choice that simplifies the given expression (2x + 3)(x - 4) correctly.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zoe, Mason, and Samuel are on a treasure hunt. They found a mysterious note with the equation 2(x - 3) = 10. Can you help them find the value of x to unlock the treasure?
x = -4
x = 8
x = 12
x = 5
Answer explanation
To solve the equation 2(x - 3) = 10, we need to isolate x. Distribute 2 to get 2x - 6 = 10. Add 6 to both sides to get 2x = 16. Divide both sides by 2 to find x = 8. Therefore, the correct choice is x = 8.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
مایکل، نوآ، و الیجا در جستجوی گنج هستند. آنها یک مهمانی پیدا کردند که میگوید '2x + 7 < 15'، جایی که 'x' تعداد گامهایی است که آنها باید بردارند. آیا میتوانید به آنها کمک کنید تا این نامساوی را برای 'x' حل کنند؟
اکس کمتر از 4 است
اکس برابر 4 است
اکس کمتر از 7 است
اکس بزرگتر از 4 است
Answer explanation
The correct choice is 'x is less than 4' because when we substitute x=4 in the inequality, it becomes 2(4) + 7 < 15 which is false.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sophia, Noah, and Ava are on a treasure hunt. They found a mysterious note with the expression (3x - 2)(x + 4) on it. Can you help them expand and simplify this expression?
3x^2 + 10x - 8
6x^2 - 8
3x^2 + 12x - 8
9x^2 + 2x - 8
Answer explanation
To expand and simplify the expression (3x - 2)(x + 4), we use the distributive property. Multiplying each term, we get 3x^2 + 10x - 8. This matches the correct choice.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
آرجون، هنری و مایا دارند یک بازی میبازند. آرجون به هنری میگوید، 'اگر ۴ را با جمع یک عدد و ۲ ضرب کنی، ۲۴ میشود. میتوانی عدد را حدس بزنی؟' عددی که آرجون در نظر دارد چیست؟
x = ۴
x = ۱۰
x = ۱۲
x = ۶
Answer explanation
The correct answer is x = 4 because when you add 1 to 4 and multiply it by 2, you get 24.
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