ivonauker19
ivonauker19
25-09-2017
Mathematics
contestada
How to factor 81y^2 -4
Respuesta :
jdoe0001
jdoe0001
25-09-2017
[tex]\bf \textit{difference of squares} \\ \quad \\ (a-b)(a+b) = a^2-b^2\qquad \qquad a^2-b^2 = (a-b)(a+b)\\\\ -------------------------------\\\\ 81y^2-4\quad \begin{cases} 81=9^2\\ 4=2^2 \end{cases}\implies 9^2y^2-2^2\implies (9y)^2-2^2 \\\\\\ (9y-2)(9y+2)[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 76+ )
Otras preguntas
Which graph represents selection that may lead to reduced variation in a population?
A large lamp is to be supported by a tube 12 feet long, you have been asked to consider a bronze or copper tube. The load is 10500 lbs. The inner diameter must
gumawa tula tungkol sa pagmamahal sa ating bansapa help naman po PLEASE
can someone check if i did this right. thank you !!
A triangle has vertices of (0,2), (3,0), (0, -3). If it is dilated with center at the origin, and a scale factor of 2, what will be the coordinates of the image
Made by Hand Company makes custom furniture of all kinds. The firm has evolved into a big business due to quality and innovative work. Recently, top management
Epd445 was allegedly caught texting 57 minors but 21 of them turned out to be of age. What is the total amount of minors he was allegedly caught texting with?
The marketing team for Lots-o-Chocolate wants to understand the effectiveness of the different components of its digital marketing campaign and put more resourc
name the two stages of photosynthesis and list the starting molecules and ending molecules of each. its in a table of three across and two down. the three thing
Select the correct answer. What is the domain of y= tan x?
