Helpneeded03 Helpneeded03

11-08-2018
Mathematics

contestada

Which of the following expressions is equal to -4x^2-36? A. (-4x-12i)(x+3) B. (-4x+9i)(x-4i) C. (-4x+12i)(x+3i) D. (-4x-9i)(x-4i)

Respuesta :

13-08-2018

[tex] (-4x+12i)(x+3i)=(-4x)(x)+(-4x)(3i)+(12i)(x)+(12i)(3i)\\\\=-4x^2-12ix+12ix+36i^2=-4x^2-36\\\\Answer:\ C. [/tex]

Answer Link

Otras preguntas

Eliza started her savings account with $100. Each month she deposits $25 into her account. Write the function that describes the relationship between the amount

What makes Central America important to U.S. foreign policy? --banana exports --coal mining --the Panama Canal --technological innovations

1. True or false: even when your research does not support your hypothesis, the hypothesis has value. True False 2. Which one of these could define a "hypothesi

one serving of scrambled eggs contains 7.8 grams of fat. Mr.Jensen is trying to eat no more than 60 grams of fat per day.if he eats 1.5 servings for breakfast,

When x is -2 what is y? 0 -2 -4

Brandon has not been an active teen, and he knows being physically active will help prevent problems as he grows older. Which health benefit can he expect when

You spend 3$ and by 6 apples with it what is the unit price in dollars per apple

1. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. x y 8 13 16 26 24 39 (1 point) yes; y = 5x y

Please answer the question above

As of 2013, all U.S. presidents to date have been: a. married with children. b. former governors. c. males.