Algebra
posted by Lauryn .
expand log2 (8x^2+48X+72)

Algebra 
Henry
Log2(8x^2+48x+72).
Log2(8)(x^2+6x+9) =
Log2(8)(x+3)^2 =
Log2(8)+2Log2(x+3) =
3 + 2Log2(x+3).
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