Hi there! :)
Answer:
=28b-57
*The answer must have a positive sign.*
Step-by-step explanation:
Lesson: Distributive property
Distributive property: a(b+c)=ab+ac
First, you expand or multiply by the numbers from left to right.
[tex]7*7=49[/tex]
[tex]7*4=28[/tex]
It change positive to negative sign.
[tex]-49+28b-8[/tex]
Finally, you add/subtract by the numbers from left to right.
[tex]49+8=57[/tex]
It change positive to negative sign.
[tex]=28b-57[/tex]
Final answer is 28b-57
I hope this helps you!
Have a nice day! :)
-Charlie
:D
