What’s 4x6+90x109-90x40 I’m giving 28 points

Solved

Show answers

Ответ:

dolphin5836

05.05.2021

Mathematics

It can't be expressed in that form

Step-by-step explanation:

From difference of two squares:

${ \boxed{(a + b)(a - b) = ( {a}^{2} - {b}^{2} )}}$

a » 9

b » 2i

$(9 + 2i)(9 - 2i) = \{ {(9)}^{2} - {(2i)}^{2} \} \\ \\ = (81 - 4 {i}^{2} )$

but i² is -1 [ complex numbers ]

$= \{81 - 4( - 1) \} \\ = 81 + 4 \\ = 85$

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

P Philosophy Unbelievable stories of encounters with otherworldly forces...
L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
H Health and Medicine How to Treat Whooping Cough in Children?...
H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
A Art and Culture When Will Eurovision 2011 Take Place?...
S Style and Beauty How to Choose the Perfect Hair Straightener?...
F Family and Home Why Having Pets at Home is Good for Your Health...

Answers on questions: Mathematics

M Mathematics You have a 10 by 20 pool and 52 in deep. You need sand to cover the bottom and the sand is $2.97 and 50lbs. How many sand bags do you need?...
M Mathematics Does anyone know this?...
S Social Studies The Presidency (no links)...
E English Click on the logical inference. Then click on the arrow.a. Factors that have increased voter participation in other countries have not worked as well in Japan.b. About a third...
A Advanced Placement (AP) Donald Trump was right when he Tweeted The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive. Given the fact that...
S Social Studies Which questioning approach is characterized by asking the customer too many questions in a short period of time...

Ask an AI advisor a question

I want advice