expand (a-2b-3c)^2
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(a-2b-3c)^2 = a^2+4b^2 +9c^2+2(-2a+6bc-3ac)
(a-2b-3c)^2 =a^2+4b^2+9c^2-4ab+12bc-6ac
If u find it useful please mark me as brainliest.
(a-2b-3c)^2 =a^2+4b^2+9c^2-4ab+12bc-6ac
If u find it useful please mark me as brainliest.
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