What is the product? (-2x-9y^2) (-4x-3) URGENT

8x^2 + 6x + 36xy^2 + 24y^2

Step-by-step explanation:

First, multiply the two terms inside the second set of parentheses by-2x; we get 8x^2 + 6x.

Next, multiply the same two terms by -9y^2; we get 36xy^2 + 24y^2.

Now add these products together:  

8x^2 + 6x + 36xy^2 + 24y^2    This is the desired product.

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value