Question

Which equation shows the Identity Property of Multiplication ?

A. a x 1
B. (a + b) + 3 = a + (3 + b)
C. a(b + c) = ab + ac
D. a + a + a = 3 x a

Answer 1

A. a × 1

Explanation:

The identity property of multiplication simply states that a number equals itself when multiplied by 1.

a × 1 is the identity property of multiplication.

(a + b) + 3 = a + (3 + b) is associative property.

a(b + c) = ab + ac is expansion.

a + a + a = 3 x a is factoring of like terms.