Question

Which expressions are equivalent to 4(42)?

Select each correct answer.




4(20 + 22)

4(4 + 20)

4(4 + 2)

4(40 + 2)

Answer 1

answer is A
4(20+22)
4(42)

Answer 2

4 ( 22 + 20 ) and 4 ( 40 + 2 ) .

Explanation:

Given : 4(42).

To find : Which expressions are equivalent .

Solution : We have given 4(42).

We can write 42 as 20 + 22 and 40 + 2

So, We can write 4 ( 22 + 20 ) .

And 4 ( 40 + 4 ) .

We can write 4(42) = 4 ( 22 + 20 ) .

4(42) = 4 ( 40+2).

Therefore , 4 ( 22 + 20 ) and 4 ( 40 + 2 ) .