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Find the product in 2x (3x – 5y + 4). *

A. 6x – 10xy + 8x
B. 6x^2 – 10xy + 8x
C. 5x^2 – 7xy + 8x
D. 5x – 10xy + 8x

What is quotient of (24c^10d^15) ÷ (6c^5d^5)? *

A. 4c^2d^3
B. 18c^2d^3
C. 18c^5d^10
D. 4c^5d^10

Divide 10x2 + x – 3 by 2x – 1. *

A. 5x – 3
B. 5x + 3
C. 5x + 1
D. 5x – 1

What is the product of (x + 7) (x – 7)? *

A. x^2 – 14
B. x^2 – 49
C. x^2 + 49
D. x^2 – 7x – 49

What is the third term of the product of (x – 6)^2? *

A. 6
B. 12x
C. x2
D. 36

What is the first term when (x – 9) is multiplied to (x – 9)? *

A. x^2
B. 9
C. 81
D. 2x

What is the last term of (x – y)^3 *

A. y^3
B. –y^3
C. 3y^3
D. -3y^3

Simplify (y – 5)^2. *

A. y^2 – 25
B. y^2 + 25
C. y^2 + 10y + 25
D. y^2 – 10y + 25

What is the product of (a – 2) and (a – 3)? *

A. a^2 – 5a + 6
B. a^2 – 5a – 6
C. a^2 – 6a – 6
D. a^2 – 5a + 5

What is the product of (2a – 3) and (2a + 3)? *

A. 2a + 3
B. a^2 – 10
C. 2a – 3
D. 4a^2 – 9

If the length of one side of a square is 2x + 3, what is the area? *

A. 12x^2
B. 4x + 6
C. 4x^2 + 9
D. 4x^2 + 12x + 9

Which of the following is NOT a mathematical equation? *

A. x + 6 =10
B. x + 8 = 15
C. 2x – 4 = 13
D. 5x + 1

Translate the sentence “a number increased by nine is fifteen” into a mathematical sentence. *

A. x + 9 = 15
B. x – 9 = 15
C. (x)(9) = 15
D. x + 15 = 9

What is “2x – 3 = 5” in English sentence? *

A. twice a number x minus three is five
B. two times three is five
C. twice three is five
D. two minus three is five

Which of the following is an algebraic inequality? *

A. x – 3 = 4
B. 2m – 5
C. w + 1 ≤ 3
D. 6 = 3d – 1

What is the value of x in 2x – 2 = 6 *

A. 4
B. 8
C. 2
D. 5

Which is the solution of 3x + 6 = 18? *

A. 2
B. 3
C. 4
D. 5

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Sagot :

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Answer:

1 c

2d

3a

4b

5d

6d

7a

8b

9c

10a

11b

12d

13c

14a

15b

16b

17c

Step-by-step explanation:

brainliest answer po yan

MariHani99idn

1. B

[tex]2x(3x - 5y + 4) \\ = 6 {x}^{2} - 10xy + 8x[/tex]

2. D

[tex] \frac{24 {c}^{10} {d}^{15} }{6 {c}^{5} {d}^{5} } \\ = 4 {c}^{10 - 5} {d}^{15 - 5} \\ = 4 {c}^{5} {d}^{10} [/tex]

3. B

[tex] \frac{10 {x}^{2} + x - 3}{2x - 1} \\ = \frac{(2x - 1)(5x + 3)}{2x - 1} \\ = 5x + 3[/tex]

4. B

[tex](x - 7)(x + 7) \\ = {x}^{2} - 49[/tex]

5. D

[tex] {(x - 6)}^{2} \\ = {x}^{2} - 12x + 36[/tex]

6. A

[tex](x - 9)(x - 9) \\ = {x}^{2} - 18x + 81[/tex]

7. A

[tex] {(x - y)}^{3} \\ = (x - y)( {x}^{2} - 2xy + {y}^{2} ) \\ = {x}^{3} - 3 {x}^{2} y + 3x {y}^{2} - {y}^{3} [/tex]

8. D.

[tex] {(y - 5)}^{2} \\ = {y}^{2} - 10y + 25 [/tex]

9. A.

10. D

[tex](2a - 3)(2a + 3) \\ = 4 {a}^{2} - 9[/tex]

11. D

[tex] {(2x + 3)}^{2} \\ = 4 {x}^{2} + 12x + 9[/tex]

12. D.

13. A.

14. A

15. C

16. A

[tex]2x - 2 = 6 \\ 2x = 6 + 2 \\ \frac{2x}{2} = \frac{8}{2} \\ x = 4[/tex]

17. C

[tex]3x + 6 = 18 \\ 3x = 18 - 6 \\ 3x = 12 \\ \frac{3x}{3} = \frac{12}{3} \\ x = 4[/tex]

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