Question

Select all of the following expressions that are equivalent to 16a+40 .

Answer Choices

4(4a+10)


2(8a+20)


4a(4+10a)


8(2a+5)

Answer 1

The first one is true
4(4a+10) is
16 a + 40 after distribution

The second one is also true
2(8a+20)
16a + 40 after distribution

Third is not true
4a(4+10a)
16a + 40a^2 after distribution

Last one is also true
8(2a+5)
16a + 40 after distribution

Hope this helps :)