1. Remove the parenthesis using the next rules:
2. Start to remove the parentheses from the center to the edges:
-24x-4 pls answer this
1 answer:
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$=(a^2-10a)-(b^2+6b) +16$
$=[(a^2-2(5)a+25)-25]-[(b^2+2(3)b+9)-9]+16$
$=(a-5)^2-25-(b+3)^2+9+16$
$=(a-5)^2-(b+3)^2$