To simplify the expression, we can distribute the -4 to each term inside the parentheses.
First, for the first parentheses:
-4(-6d + 3) = +24d - 12
Next, for the second parentheses:
-4(10d + 2) = -40d - 8
Now, we can combine the simplified expressions together:
+24d - 12 - 40d - 8 = -16d - 20
Rewrite in simplest terms: -4(-6d+3)-4(10d+2)
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