Question

Which expressions are equivalent to
4(4a+5)4(4a+5)

Answer 1

Answer:

(384a+400)

Step-by-step explanation:

4(4a+5)4(4a+5)

first multiply the 4s in (8a+20)(8a+20)

then multiply the two ( )( )

64a+160a+160a+400

combined like terms

(384a+400)

Answer 2

Answer:

Three answers are:

1. 16a+20

2. 12a+20+4a

3. 2(8a+10)