Karin wants to use distributive property to find the value of 19*42+19*58 mentally. which expression can she use

19(42+58) because it's basically like factoring binomials- you take out the common factor.

Hope this helps.

We know, Distributive property tells: a(b + c) = ab + ac
So, 19*42 + 19*58 = 19 (42 + 58)
= 19(100)
= 1900

In short, Your Expression would be: 19(42 + 58) & Answer is 1900

Hope this helps!

Hope i can you!