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Многочлены

Authored by zi lyaa

Mathematics

7th Grade

Used 1+ times

Многочлены
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14 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Выполните умножение: (a−2)×(b+5)=\left(a-2\right)\times\left(b+5\right)=

ab−2b−10+5aab-2b-10+5a

ab−5a−2b−10ab-5a-2b-10

2b−10−ab−5a2b-10-ab-5a

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Вынесите за скобки общий множитель: am+an=am+an=

m(a+n)m\left(a+n\right)

a(m+n)a\left(m+n\right)

a(m−n)a\left(m-n\right)

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Разложите на множители: 5b−25bc=5b-25bc=

5(b−5bc)5\left(b-5bc\right)

5b(1−5c)5b\left(1-5c\right)

5b(5−5c)5b\left(5-5c\right)

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Разложите на множители методом группировки: ma+mb+4a+4b=ma+mb+4a+4b=

(m+4)(a+b)\left(m+4\right)\left(a+b\right)

(m+a)(b+4)\left(m+a\right)\left(b+4\right)

(m+b)(a+4)\left(m+b\right)\left(a+4\right)

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Формула произведения разности и суммы двух выражений записывается:

(a−b)(a−b)=(a−b)2\left(a-b\right)\left(a-b\right)=\left(a-b\right)^2

(a−b)(a+b)=a2−b2\left(a-b\right)\left(a+b\right)=a^2-b^2

(a−b)(a+b)=a2+b2\left(a-b\right)\left(a+b\right)=a^2+b^2

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Выполните умножение многочленов: (4a−b)(b+4a)=\left(4a-b\right)\left(b+4a\right)=

16a2−b216a^2-b^2

b2−16a2b^2-16a^2

16a2+b216a^2+b^2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Выполните умножение: (x3+4)(x3−4)=\left(x^3+4\right)\left(x^3-4\right)=

x6+16x^6+16

x6−16x^6-16

x3−16x^3-16

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