Evaluate
40
Factor
2^{3}\times 5
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12a+24-4\left(3a-4\right)
Use the distributive property to multiply 6 by 2a+4.
12a+24-12a+16
Use the distributive property to multiply -4 by 3a-4.
24+16
Combine 12a and -12a to get 0.
40
Add 24 and 16 to get 40.
4\left(3\left(a+2\right)-\left(3a-4\right)\right)
Factor out 4.
40
Simplify.
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