MathMaster logo

MathMaster

  1. Home
  2. general
  3. expand 3x 1 3x 1
Question

Expand (3x − 1)(3x + 1)

102

likes
509 views

Answer to a math question Expand (3x − 1)(3x + 1)

Expert avatar
Velda
4.5
110 Answers
Use foil method \left(3x\right)\left(3x\right)+3x\left(1\right)+\left(-1\right)\left(3x\right)+\left(-1\right)\left(1\right) 9x^2+3x-3x-1 Combine like terms Answer\:=\:9x^2-1

Frequently asked questions (FAQs)
What is the value of f(x) = 2x^2 + 3x - 5 when x = 4?
+
Find the amplitude, period, and range of the sine function f(x) = sin(x).
+
What is the volume of a rectangular prism with dimensions 8cm x 5cm x 4cm?
+
New questions in Mathematics
A normal random variable x has a mean of 50 and a standard deviation of 10. Would it be unusual to see the value x = 0? Explain your answer.
If you have a bag with 18 white balls and 2 black balls. What is the probability of drawing a white ball? And extracting a black one?
5/8 x 64
Let I ⊂ R be a bounded and nonempty interval. Show that there are numbers a, b ∈ R with a ≤ b and I =[a,b] or I =[a,b) or I =(a,b] or I =(a,b)
Consider numbers from 1 to 2023. We want to delete 3 consecutive, so that the avarage of the left numbers is a whole number. How do we do that
Answer the following questions regarding the expression below. 0.1 (a) Write the number as a fraction.
Solve this mathematical problem if 3/5 of a roll of tape measures 2m. How long is the complete roll? Draw the diagram
Find the equation of the line perpendicular to −5𝑥−3𝑦+5=0 passing through the point (0,−2)
prove that if n odd integer then n^2+5 is even
-3(-4x+5)=-6(7x-8)+9-10x
(2m+3)(4m+3)=0
-1%2F2x-4%3D18
3%2B2
A,B,C and D are the corners of a rectangular building. Find the lengths the diagonals if AB measures 38' - 9" and AD measures 56' - 3"
The blood types of individuals in society are as follows: A: 30%, B: 25%, AB: 20%, 0: 25%. It is known that the rates of contracting a certain disease according to blood groups are as follows: A: 7%, B: 6%, AB: 7%, 0: 4%. Accordingly, if a person selected by chance is known to have this disease, what is the probability of having blood group O?
16-(x²+x+2)²
Hola👋🏻 Toca en "Crear Nueva Tarea" para enviar tu problema de matemáticas. ¡Uno de nuestros expertos comenzará a trabajar en ello de inmediato!
t+72/t=-17
Question 3 A square has a perimeter given by the algebraic expression 24x – 16. Write the algebraic expression that represents one of its sides.
Construct a set of six pieces of data with​ mean, median, and midrange of 67 and where no two pieces of data are the same.

You might be interested in