In the past, we learned about (number x number). It is usually solved by just putting in to
calculator. Although if u face with (equation x equation), we don’t know exactly how to solve.
This is how we use distribution property formula back in math 10. For example,
(x+1) x (x+2) = ?
it is solved down below :
(x+1) x (x+2) = X x X + X x 1 + X x 2 + 1 x 2 = 
What if we have coefficient in front of x, lets solve it.
(3x+ 4) x (2x + 7) = ?
it is solved same as before :
(3x + 4) x (2x + 7) = 3X x 2X + 3X x 7 + 2X x 4 + 4 x 7 = 
In conclusion, make sure there is coefficient in each equation and don’t forget to include
that number when multiplying.