Question

(7d-9e)(7d-9e) select the suitable identity and find the following products

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Answer 1

Answer:

49d^2-126de+81e^2

Step-by-step explanation:

(7d-9e)(7d-9e)

= (7d-9e)^2

=49d^2-126de+81e^2

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Answer 2

Answer:

49d² - 126de - 81e²

Step-by-step explanation:

(7d-9e) (7d-9e)

(7d-9e)²

(7d)² - 2(7d)(9e) + (9e)²

49d² - 126de + 81e²

Hope it helps you