Question

(3a-b) square - 9c square plz help me answer this.

Answer 1

Answer:

(3a-b)²-9c

(3a-b)(3a-b)-9c

9a+2b-9c.

This is the main answer

Step-by-step explanation:

Hope it will help you

Answer 2

Answer:

(3a-b) ^2 - (9c)^2

9a^2+b^2-6ab-81c^2....

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