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Повторение 9класс

Authored by Юлиана Криводонова

Mathematics

9th Grade

Used 2+ times

Повторение 9класс
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

−3х+7>х+23-3х+7>х+23

х>−4х>-4

х<−4х<-4

х>4х>4

х<4х<4

2.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

4х2+8х=04х^2+8х=0

-2

0

2

4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Решите уравнение х2−х−12=0х^2-х-12=0

3;4

-3;-4

-3;4

3;-4

4.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Решите уравнение (х−1)(2х+3)=0\left(х-1\right)\left(2х+3\right)=0

-1

1

32\frac{3}{2}

−32-\frac{3}{2}

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Выполните действие а+1а×ba2+a\frac{а+1}{а}\times\frac{b}{a^2+a}

ba+1\frac{b}{a+1}

ba2\frac{b}{a^2}

ba\frac{b}{a}

ba2+1\frac{b}{a^2+1}

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Решите , используя свойства степеней с4×(с2)6с3\frac{с^4\times\left(с^2\right)^6}{с^3}

с12с^{12}

с2с^2

с13с^{13}

с15с^{15}

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Сократите дробь 24ас218а4с2\frac{24ас^2}{18а^4с^2}

43а3\frac{4}{3а^3}

с

3а23а^2

12ас

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