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

Can someone pls give me an example of human geography in everyday life?

How do I solve this?

|16-4t|+ 5 = 0 please help me

what is the probability that at least one of the top three cards in a well shuffled deck of cards is a jack, queen, or king?

In 2016, a country had a doubling time of 10 years. Calculate the growth rate. Doubling time = 70/growth rate so Growth Rate = 70/doubling time A. 7% B. 18% C.

How does Amanda lee duckworth suggest students can cultivate the skill of grit

Question - which of the following statements is true about Na(sodium):

Which statement best completes the diagram of the ways the different branches of government can limit each other's power? Can rule a president's actions unconst

The earliest example of the fusion of african and european musical elements in a popular style was:_____.

1. From 1865 to 1900, how did the growth of industry affect American society? A. The United States experienced the disappearance of the traditional "family farm