
Қысқаша көбейту формулалары
Authored by Жанар Ильясова
Mathematics
1st Grade
Used 69+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дұрыс емес теңдікті анықта
(3в-c)(3в+c)=9в2-c2
(x+4)(4-x)=16-x2
36n2-49=(6n+7)(7-6n)
y4-25=(y2-5)(y2+5)
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
x-ті қандай бірмүшемен алмастырғанда n2+x+0,04 өрнегі екімүшенің квадраты болады?
0,2n немесе -0,2n
4n немесе -4n
2n немесе -2n
0,4n немесе -0,4n
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Дұрыс теңдікті анықтаңдар
(3+a2)2=9+3a+a2
(k-5)2=k2-10k+10
(x+2y2)2=x2+4xy2+4y4
16a4-24a2b+9b2=(8a2-3b)2
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
c2+10c+25
(c+4)2
(2c+5)2
(c+5)2
(c+15)2
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
(a-4b)2
a2-8b+16b2
a2+8b-16b2
a2-8b-16b2
a2+8b+16b2
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
9x2-16y2
(3x-4y)(3x+4y)
(3x+4y)(3x+4y)
(3x-4y)(3x-4y)
(3x-4x)(3x+4x)
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Көбейтуді орындаңдар: (а + 2)(2 - а)
а2 - 4
а2 + 4
4 - а2
4 - а
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