If m(x) = x2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)? 5x3 + 9x2 + 15x + 27 25x2 + 90x + 84 x2 + 5x + 12 5x2 + 24

Choice A is the correct answer.

Step-by-step explanation:

From question statement, we observe that

Two binomial functions are given and we have to find their product.

m(x) = x²+3   and n(x) = 5x+9

(mn)(x) = ?

We use following Binomial Product Property to find product of given function.

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

(mn)(x) = m(x)n(x)

putting the values of m(x) and n(x) in above formula , we get

(mn)(x) = (x²+3)(5x+9)

using binomial product property , we get

(mn)(x) = x²(5x) + 3(5x) + x²(9) +3(9)

(mn)(x) = 5x³+15x+9x²+27

(mn)(x) = 5x³+9x²+15x+27 which is the answer.

i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70