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31 December, 22:35

What is the factored form of the expression?

4x2 - 81y2

A. (2x + 9) (2x - 9)

B. (2x + 9y) (2x - 9y)

C. (2x + 9y) 2

D. (2x - 9y) 2

Factor the polynomial.

54c3d4 + 9c4d2

A. 9c3d2 (d2 + 6c)

B. 9c3d2 (6d2 +

c.

C. 9c4d2 (d2 + 6)

D. 9c4d2 (6d2 + 1)

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Answers (1)
  1. 1 January, 00:10
    0
    4x^2 - 81y^2

    = (2x) ^2 - (9y) ^2

    = (2x + 9y) (2x - 9y)

    Choose B. (2x + 9y) (2x - 9y)

    54c^3d^4 + 9c^4d^2

    = 9c^3d^2 (6d^2 + c)

    Choose B. 9c^3d^2 (6d^2 + c)
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