
формулы сокращенного умножения
Quiz
•
Mathematics
•
7th - 8th Grade
•
Practice Problem
•
Hard

Шолпан Утемисова
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Представьте трехчлен в виде квадрата двучлена 4x2 +12x+9
(2+3х)2
(2-3х)2
(2x-3)2
(2x+3)2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выполни умножение многочленов (р-5)(р+5)
p2-5
p-25
p2-25
p2+25
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Разложите на множители многочлен 16-x2
(2-x)(2+x)
(4-x)(4+x)
(4+x)(4+x)
(x-4)(x+4)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Замени *, чтобы равенство было верным:
(3b-4c)²=9b²-*bc+16c²
12
-12
24
7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выполни действие:
(х-3у)²
х²-3ху+9у²
х²+6ху+9у²
х²-6ху-9у²
х²-6ху+9у²
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Возвести в квадрат сумму 4+3х
4+12х+3х2
16+24х +9х2
9х2+12х+16
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В тождестве (a + *)2 = a2 + 4ab2 +4b4 значок * можно заметь одночленом:
2b2
-2b2
-4b2
4b2
такого одночлена не существует
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