Quiz about 21. Коэффициент. Ұқсас қосылғыштар. Ұқсас қосылғыштарды біріктір

Question 1

$$\frac{20x^5y}{5x^3y^2}=$$

Accepted Answer

$$\frac{4x^2}{y}$$

Answer

$$\frac{5x^2}{y}$$

Answer

$$\frac{4x^2}{y^2}$$

Answer

$$\frac{4x^3}{y}$$

Question 2

$$\frac{-40a\cdot(-64)}{4a\cdot8\cdot(-5)}=$$

Accepted Answer

-16

Answer

-10

Answer

24

Answer

8

Question 3

Question 3.

Accepted Answer

$$\frac{5a^2bc^3}{d^2}$$

Answer

$$\frac{3a^3c^3}{d^2}$$

Answer

$$\frac{5a^2c^3}{d^2}$$

Answer

$$\frac{5abc^3}{d^2}$$

Question 4

$$5\cdot(1,8x+0,2-0,4x+0,6)=$$

Accepted Answer

7x+4

Answer

1,8x

Answer

0

Answer

1

Question 5

$$\frac{5}{12}(4,8x-1\frac{1}{3})-3\frac{1}{9}=$$

Accepted Answer

$$2x-3\frac{2}{3}$$

Answer

0

Answer

1

Answer

$$2x+4\frac{2}{3}$$

Question 6

Question 6.

Accepted Answer

$$x+\frac{25}{4}$$

Answer

$$x+\frac{15}{4}$$

Answer

$$x+\frac{23}{4}$$

Answer

$$x+\frac{35}{4}$$

Question 7

$$5\cdot(1,8+0,2-0,4x+0,6)=$$

Accepted Answer

7x + 4

Answer

13-2x

Answer

13 - 3x

Answer

14 - 5x

Question 8

$$1,4a-(2,5-a)+(1,3-2,3a)=$$

Accepted Answer

0,1a - 1,2

Answer

0

Answer

0,2a + 2

Answer

0,4a - 0,1

Question 9

$$7b-3a-(b-3a-(3b-2a))+3a=$$

Accepted Answer

9b + a

Answer

3b - a

Answer

4b + 3a

Answer

6a + 3b

Question 10

$$5,4\left(b-3\right)-\left(b-4,3\right)-8c+5b=$$

Accepted Answer

9,4b-8c-11,9

Answer

5,6b-8c+12

Answer

2,4b-8c+11

Answer

8,6b-8c-12,8

Question 11

$$\frac{1}{2}a\left(a+b\right)-b\left(1-2a\right)=$$

Accepted Answer

$$0,5a^2+2,5ab-b$$

Answer

$$0,5a^2+ab-b$$

Answer

$$0,5a^2-2,5ab-b$$

Answer

$$0,5a^2+2ab+b$$

Question 12

$$-(a-(2b+2a)-(a+3b)+2b)=$$

Accepted Answer

2a+3b

Answer

-a+2b

Answer

2a

Answer

4a

Question 13

$$a-(a-b-(a+b)-(-b+a)+b)=$$

Accepted Answer

4a

Answer

2a

Answer

3a-b

Answer

a-b

Question 14

$$a+b-(a-(-b+a)+(a-b)-b)-a=$$

Accepted Answer

2b-a

Answer

2b+a

Answer

b-2a

Answer

b+a

Question 15

$$m+(n-(m-n)-(n+m))+(m-n)+n)-m=$$

Accepted Answer

n - m

Answer

m - n

Answer

0

Answer

1

Question 16

Accepted Answer

$$11\frac{1}{18}$$

Answer

$$13\frac{11}{18}$$

Answer

$$12\frac{1}{18}$$

Answer

$$11\frac{5}{18}$$

Question 17

$$-3x+9y-3(a-2b)-1,5(6y-2x)+(-6b)=$$

Accepted Answer

3a

Answer

5b

Answer

3y - 4a

Answer

a - 2b

Question 18

$$\left(2x^3-2x^2+2x\right)-\left(x-8x^3\right)=$$

Accepted Answer

$$10x^3-2x^2+x$$

Answer

$$6x^3-3x^2+3x$$

Answer

$$5x^3-2x^2+x$$

Answer

$$6x^3-2x^2+3x$$

Question 19

$$-\left(8\frac{1}{2}x+6,3y-5z\right)-2\left(-4,25x-2z-4,95y\right)$$

Accepted Answer

9(0,4y+z)

Answer

4z - 3,6y

Answer

3,6y + 4z +5

Answer

5(z-2,4y)

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