Раскройте скобки по формуле квадрата разности двух выражений: (х – 3)²

ФСУ 7 класс

Quiz
•
Mathematics
•
7th Grade
•
Hard
Юлия Мадина
Used 3+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x²- 9
x²-3x+9
x²+6x+9
x²-6x+9
x2+9
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Разложите на множители по формуле разности квадратов двух выражений: 25 - х²
(х+5)(х-5)
(5+х)(5-х)
(5-х)(5-х)
(25-х)²
(5-x)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Упростите выражение: (7x-4)(7x+4)
49x-16
(7x-4)²
49x²+16
7x²-4²
49x²-16
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вычислить: 642 - 542
100
118
1180
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Разложить на множители : 49m4-144n2
(7m3+12n)(7m3+12n)
(7m-12n)(7m+12n)
(7m2-12n)(7m2+12n)
6.
MULTIPLE CHOICE QUESTION
30 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
Вычислить:762 - 662
142
1420
140
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