Multiply (3+a)by(5-2a)

Answer 1

Using the distributive property, we can multiply each term in the first expression by each term in the second expression:

(3+a)(5-2a) = 3(5) + 3(-2a) + a(5) + a(-2a)

Simplifying:

= 15 - 6a + 5a - 2a^2

= -2a^2 - a + 15

Therefore, (3+a)(5-2a) = -2a^2 - a + 15.