Question

(-3a+5b+4c)^2 expand the following​

Answer 1

Answer:

Step-by-step explanation:

(-3a)^2+(5b)^2+(4c)^2  -2(3a) (5b) +2(5b) (4c) - 2(4c) (3a)9a^2 +25b^2 +16c^2 -30ab +40bc - 24ca

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Answer 2

Answer:

$( - 3a + 5b + 4c) {}^{2} = \\ 3a {}^{2} +5 b2 {}^{2} + 4c {}^{2} + 2(3a5b) + 2(5b4c) + 2(4c - 3a.)$