Question

Write a whole number in each blank to show an expression that is equivalent to 12n-8

_•n+5n-_

Answer 1

To show an expression that is equivalent to 12n - 8 using the given terms, we can factor out 4 from the first term:

12n - 8 = 4(3n) - 8

We can then add and subtract 20 inside the parentheses to create the desired expression:

12n - 8 = 4(3n) - 8 = 4(3n + 5n - 20) = 4(8n - 20)

Therefore, the whole numbers that should be placed in the blanks are 3 and -20, respectively.

So the equivalent expression is 4(3n + 5n - 20).