3 years ago

(3c - d)² + d(5c - d)

Mathematics

1 answer:

Musya8 [376]3 years ago

4 0

Answer:

9c^2-cd

Step-by-step explanation:

(3c-d)^2+d(5c-d)

(3c-d)(3c-d)+5cd-d^2

9c^2-3cd-3cd+d^2+5cd-d^2

9c^2-6cd+5cd

9c^2-cd

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(3c - d)² + d(5c - d)​

(3c - d)² + d(5c - d)