Question

If x, y and z are the integers, then
(x + y) z = .

• A. xz + yz
• B. xz + xy
• C. zx + xz

Answer 1

The correct option is A xz + yz

Here, (x + y) z = xz + yz (distributive property)
Example : (3 + 2) 4 = 5$\times$4 = 20
= 3$\times$4 +2$\times$4
= 12 + 8
= 20
Thus, (3 + 2) 4 = 3$\times$4 +2$\times$4
or
(x + y) z = xz + yz