Question

Expand (3a-2b+5c) whole square​

Answer 1

Answer:

9a²+4b²+25c²-12ab-20bc+30ac

Step-by-step explanation:

(3a-2b+5c)²

= 9a²+4b²+25c²-12ab-20bc+30ac

[(a-b+c)²= a²+b²+c²-2ab-2bc+2ac]

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Answer 2

Answer:

$9a^2 + 4b^2 + 5c^2 - 12ab + 30ac - 20bc$