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12-10-2020
Mathematics

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(3c-5d)²EXPAND IT PLEASE

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kaitlynlambert18 kaitlynlambert18

12-10-2020

Answer:

9c^2 - 30cd + 25d^2

Step-by-step explanation:

(3c - 5d)^2

= (3c - 5d) (3c - 5d)

= [3c * 3c] + [3c * -5d] + [-5d * 3c] + [-5d * -5d]

= 9c^2 - 30cd + 25d^2

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