Join expressions of equal value
(a−b)(c−4)
(a+b)(c+4)
(a−b)(c+4)
(a+b)(c−4)
a.ac−4a+bc−4b
b.ac+4a−bc−4b
c.ac−4a−bc+4b
d.ac+4a+bc+4b
We use all the exercises of the extended distributive property:(a+b)×(c+d)=ac+ad+bc+bd
1.(a−b)(c−4)=ac−4a−bc+4b
2.(a+b)(c+4)=ac+4a+bc+4b
3.(a−b)(c+4)=ac+4a−bc−4b
4.(a+b)(c−4)=ac−4a+bc−4b