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Math

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AlgebrAic factorization

1)6(2a-3)(a+7)+18(2a-3)(3a+2)

2) (3x-4)(5x+1)-(5x+3)(4-3x)

I know number 1 and 2 but just wanted to make sure if my answers
I need help in this only:
3) (3x-1)^2 + 5(1-3x)+3x(1-3x)^2

  • Math -

    3. 9x^2-6x+1 + 5-15x + 3x(9x^2-6x+1)
    9x^2-6x+1 + 5-15x + 27x^3-18x^2+3x
    27x^3-9x^2-18x+6
    3(9x^3-3x^2-6x+2)

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