Algebra 1

1) what is the simplified form of (x-2)(2x+3)? Use the distributive property.
A) 2x^2-x-6
B) 2x^2-6
C)2x^2-7x-6
D) 2x^2 +x-6****

2) what is the simplified form of (3x+2)(4x-3) use a table.
A)12x^2+18x+6
B) 12x^2+x-6
C) 12x^2+18x-6****
D)12x^2-x-6

3) what is the simplified form of (4p-2)(p-4)
A)4p^2+6p-16
B)4p^2-18p+8
C)4p^2-14p-6
D)4p^2-6p+16****

4) the radius of a cylinder is 3x-2 cm. the height of a cylinder is x+3 cm. what is the surface area of the cylinder? Use the formula A=2pi r^2+2pi rh
A) 2pi(3x^2+10x-8)
B) 2pi(12x^2+7x-2)
C) 2pi(12x^2-2x+13)
D) 2pi(12x^2-5x-2)
Pi=the pi symbol I didn't know how to do that

5) what is the simplified form of (2x^2+4x-3)(3x+1)
A) 6x^3+10x^2-5x+5
B) 6x^3+14x+5x-3
C) 6x^3+14x^2-5x-3
D) 6x^3-10x^2-5x-3

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  1. @mssue

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  2. #1, your middle term is -x , thus A

    #2 D

    #3 B
    How are you doing these, so far they are all wrong
    (4p-2)(p-4)
    = 4p^2 - 16p - 2p + 8
    = 4p^2 - 18p + 8

    #4
    A = 2πr^2 + 2πrh
    = 2π(3x-2)^2 + 2π(3x-2)(x+3)
    = 2π[ 9x^2 - 6x - 6x + 4 + 3x^2 + 9x - 2x - 6]
    = 2π[12x^2 - 5x - 2] ,
    which is D

    #5
    (2x^2+4x-3)(3x+1)
    = 6x^3 + 2x^2 + 12x^2 + 4x - 9x - 3
    = 6x^3 + 14x^2 - 5x - 3

    I think you will need more practise with these.

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  3. Thank you so much, and I know I have been practicing then I jut for some reason don't undertsand

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  4. A
    D
    B
    D
    C

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  5. @Meh is correct

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  6. 4.2(2-2x)=-3x
    a.-4
    b.4
    c.6**
    d.0

    is that right??

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  7. meh is 100% correct thanks

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  8. MehIsCorrect

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  9. A
    D
    B
    D
    C
    D

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  10. me is all right

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  11. me, is correct.

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  12. thanks meh (:

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  13. A
    D
    B
    D
    C

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  14. Connections academy
    A
    D
    B
    D
    C

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  15. Algebra 1 B | Unit 3: Polynomials and Factoring
    Lesson 3: Multiplying Binomials
    ---
    1. A, 2x^2 - x - 6
    2. D, 12x^2 - x - 6
    3. B, 4p^2 - 18p + 8
    4. D, 2pi(12x^2 - 5x - 2)
    5. C, 6x^3 + 14x^2 - 5x - 3

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  16. Thanks.

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  17. Thanks Meh! Everyone who needs help listen to Meh's answers. They are all right. If you want a 100% on your quick check copy Meh's answers.

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  18. for the ones who have only 4Q, its
    1.A
    2.D
    3.B
    4.C

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  19. meh is right

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  20. @me ur 100% right Thnxs!

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  21. go stream @ MEH

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  22. Thanks Meh

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  23. Algebra 1 B | Unit 3: Polynomials and Factoring
    Lesson 3: Multiplying Binomials
    ---
    1. A, 2x^2 - x - 6
    2. D, 12x^2 - x - 6
    3. B, 4p^2 - 18p + 8
    4. D, 2pi(12x^2 - 5x - 2)
    5. C, 6x^3 + 14x^2 - 5x - 3

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  24. Regular maths - go for meh
    Honors maths - go for me

    All 100%.

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  25. there's an entire vid for the answers

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  26. @Meh 100% correct

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  27. poggers

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  28. i live within the world but not

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