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 equation of a logarithmic function when graphed with a vertical asymptote at x = 2 and passes through the point (1, 3)?

What is the period of the trigonometric function f(x) = 3sin(4x) - cos(2x)?

Math question: In triangle ABC, angle A measures 60° and angle B measures 80°. Find the measure of the angle bisector of angle C.

New questions in Mathematics

How much volume of water in MegaLiters (ML) is required to irrigate 30 Hectare crop area with depth of 20mm?

Calculate the 6th term of PA whose 1st term is 6.5 and the ratio 5

what is 9% of 307

Determine the absolute extrema of the function 𝑓(𝑥)=𝑥3−18𝑥2 96𝑥 , on the interval [1,10]

A soft drink machine outputs a mean of 23 ounces per cup. The machines output is normally distributed with a standard deviation of 3 ounces. What is the probability of filling a cup between 26 and 28 ounces round your answer to four decimal places

Divide 22 by 5 solve it by array and an area model

7/6-(-1/9)

A regional candy factory sells a guava roll at a price of $48, the monthly fixed costs amount to $125,000 and the variable cost for making a guava roll is $28. Determine: a) The equation of the total income from the production of guava rolls.

The average number of babies born at a hospital is 6 per hour. What is the probability that three babies are born during a particular 1 hour period?

If X1 and X2 are independent standard normal variables, find P(X1^2 + X2^2 > 2.41)

Convert 5/9 to a decimal

On+January+10+2023+the+CONSTRUCTORA+DEL+ORIENTE+SAC+company+acquires+land+to+develop+a+real estate+project%2C+which+prev%C3% A9+enable+50+lots+for+commercial+use+valued+in+S%2F+50%2C000.00+each+one%2C+the+company+has+as+a+business+model+generate+ cash+flow+through%C3%A9s+of+the+rental%2C+so+47%2C+of+the+50+enabled+lots+are+planned to lease+47%2C+and+ the+rest+will be%C3%A1n+used+by+the+company+for+management%C3%B3n+and+land+control

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"

A 20,000 kg school bus is moving at 30 km per hour on a straight road. At that moment, it applies the brakes until it comes to a complete stop after 15 seconds. Calculate the acceleration and the force acting on the body.

What is the total amount due and the amount of interest on a 3-year loan of $1,000 at a simple interest rate of 12% per year?

The area bounded by the curve y=ln(x) and the lines x=1 and x=4 above the x−axis is

The inner radius of a spherical ball is 13 cm. How many liters of air are in it? Justify your answer!

A nondegenerate ideal gas of diatomic molecules with a kilomolar mass of 2 kg/kmol and a characteristic rotational temperature of 86 K is adsorbed on the walls of a container, where the binding energy is 0.02 eV. The adsorbed molecules move freely on the walls, and their rotation is confined to the plane of the walls. Calculate the surface density of adsorbed molecules at 12 K if the gas pressure is 103 Pa! What result would you get at 68 K and the same pressure?

Convert (324)𝑓𝑖𝑣𝑒 into base-ten

A grain silo has a height of 8.8m with a 11.4m diameter. If it is filled 0.5% of it's volume, how much grain (m^3) is stored in the silo? (0 decimal places)

Expand (3x − 1)(3x + 1)

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

You might be interested in