Answer:
6c -12d +10
Explanation:
An expression is generally considered to be in standard form when the terms are in order by decreasing degree, and the variables are in lexicographical order.
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Here, all of the variable terms are degree 1, so we only need to put them in alphabetical order. The constant is of degree 0, so it appears last.
6c -12d +10 . . . . . the expression in standard form