Expand 5-8(-8-3f)

To expand 5-8(-8-3f), we need to distribute the "-8" to both the "-8" and "-3f" terms:

5 - 8(-8 - 3f)

Remember that when multiplying a negative number with a negative number, the result is positive. Also, when multiplying a negative number with a positive number, the result is negative.

So, we have:

5 + 8(8) + 8(3f)

= 5 + 64 + 24f

= 69 + 24f

Therefore, the expanded form of 5-8(-8-3f) is 69 + 24f.