bufjasmine bufjasmine

05-05-2015
Mathematics

Answered

What is a simpler form of the following expressions?
(j + 7)(j - 7)

a. j² +14j - 49
b. j² - 14j - 49
c. j² + 14j - 49
d. j²- 49

Answer :

Nellz01 Nellz01

05-05-2015

j x j = j^2
j x -7 = -7j
7 x -7 = -49
j x 7 = 7j
j^2 - 7j + 7j - 49 = D = j^2 - 49

Answer Link

Other Questions

Question 8 of 10True or false? In deductive thinking, you start with a given set of rules and conditions and determine what must be true as a consequence.A. Tru

Select all the correct answers.Which two ideas of the Enlightenment thinkers are contained in the US Constitution?A. Limiting the powers of state governmentsB.

Describe an experiment to investigate the effect of a range of concentrations of sugar solutions on the mass of a potato. Ensure you include the following:1. Ai

```latex\begin{tabular}{|c|c|c|c|}\hline [tex]$Mol N_2H_4$[/tex] & [tex]$Mol N_2O_4$[/tex] & [tex]$Mol N_2$[/tex] & [tex]$Mol H_2O$[/tex] \\\hline 4

Fill in the missing justifications in the correct order.\begin{tabular}{|l|l|}\hline Mathematical Statement & \multicolumn{1}{|c|}{ Justification } \\\hline

A fertilized ovum contains the ________ code that will direct the unique development of the newly-formed person's life. Group of answer choices O mitotic O meio

George and Carmen went on a bicycle trip. They took a bus to their starting point, and then biked the rest. They traveled 325 kilometers in total, and they bike

Helen draws a random circle and measures its diameter and circumference.She gets a circumference, [tex]$C$[/tex], of [tex]$405 \, mm$[/tex] correct to 3 signifi

A cooperative bank lent ₹4000 to Anand at the rate of x% p.a. under simple interest and 5000 to Milind at (x + 0.5)% p.a. under simple interest. After 2 years t

Andy Warhol's work, such as Heinz 57 Tomato Ketchup, was part of the:A. Conceptualism B. Abstract Expressionism C. Pop Art D. Rococo

can someone please order from west to east United Kingdom, Canada,Russia

The bakery you choose cost $1000 per month to rent. The bakery that you almost rented was one fourth for the cost but was too small how much was the other baker

A high-pressure system is usually associated with which type of weather? A. high humidity B. thin cloud cover C. thick cloud cover D. clear skies

5x-4{-[3-4(5x+1)+2(3-2x)]}

A right triangle has legs measuring 4.5 meters and 1.5 meters. The length of tge legs of a second triangle are proportional to the legs of the first triangle. W

extracting the square root. (4x+7)^2=60

The first fully developed American factory system emerged in the _______ industry. A. textile B. sugarcane C. distilling D. iron

The first fully developed American factory system emerged in the _______ industry. A. textile B. sugarcane C. distilling D. iron

The cooking class used 18 cups of flour to make 8 identical loaves of bread. How many cups of flour were needed for each loaf ? Express each answer as a mixed n

what is 20x20? how do you know? Can you explain.