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)

Find the maximum value, in radians, of the trig function f(x) = 3sin(4x) + 2cos(5x), where 0 ≤ x ≤ 2π.

What is the sum of the mixed numbers 3 1/2 and 2 3/4, after factoring the numbers and expressing the result in real numbers?

What is the formula for calculating the volume of a cone, given its radius (r) and height (h)?

New questions in Mathematics

A circle with a 12-inch diameter is folded in half and then folded in half again. What is the area of the resulting shape?

3(4×-1)-2(×+3)=7(×-1)+2

2/3+5/6×1/2

Find the equation of the line perpendicular to −5𝑥−3𝑦+5=0 passing through the point (0,−2)

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?

Solve : 15/16 divide 12/8 =x/y

It is known that the content of milk that is actually in a bag distributes normally with an average of 900 grams and variance 25 square grams. Suppose that the cost in pesos of a bag of milk is given by 𝐶(𝑥) = { 3800 𝑠𝑖 𝑥 ≤ 890 4500 𝑠𝑖 𝑥 > 890 Find the expected cost.

Convert 5/9 to a decimal

Use linear approximation to estimate the value of the sine of 31o.

X³-27

Solve equations by equalization method X-8=-2y 2x+y=7

Next%C3%B3n%2C+we+are+given+a+series+of+Tri%C3%A1angles+Right%C3%A1angles+%3Cbr%2F%3Ey+in+each+one+of+them+ are+known+2%28two%29+measurements+of+sides.+%3Cbr%2F%3Elet's+determine+all+trigonom%C3%A9tric+ratios.

cube root of 56

17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.

What is the value of f(-3) for the function X squared+5x-8=

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.

00 piece jigsaw puzzle. the completed puzzle is 10x10. each piech connects to at least 2 other pieces. i plan to assemble by taking pieces out of box one by one. if i've already taken out 2 pieces that dont directly connect, what is the minimum number of additional pieces that i need to draw to in order to guarentee that the original 2 pieces connect?

A 20-year old hopes to retire by age 65. To help with future expenses, they invest $6 500 today at an interest rate of 6.4% compounded annually. At age 65, what is the difference between the exact accumulated value and the approximate accumulated value (using the Rule of 72)?

simplify w+[6+(-5)]

Question 3 A square has a perimeter given by the algebraic expression 24x – 16. Write the algebraic expression that represents one of its sides.

Expand (3x − 1)(3x + 1)

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

You might be interested in