Question

Write an equivalent expression for the expression (a+b)(2+y)

Answer 1

2a + ay + 2b + by

Explanation:

Use FOIL:

(a + b)(c + d) = ac + ad + bc + bd

(a + b)(2 + y) = (a)(2) + (a)(y) + (b)(2) + (b)(y) = 2a + ay + 2b + by