The formula for (a-b) ^2 is a^2-2ab+b^2.
(x-2) ^2=x^2-2*x * (-2) + 4
=x^2+4x+4
I solved this. Why is not correct to take the second number negative? I mean, the solution for the exercise is x^2-4x+4. Why is it negative instead of positive?
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The formula for (a-b) ^2 is a^2-2ab+b^2. (x-2) ^2=x^2-2*x * (-2) + 4 =x^2+4x+4 I solved this. Why is not correct to take the second number ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
What is the solution to the system of equations below: y = - x + 6 y = 3x + 2 Question 1 options: (1,5) no solutions infinitely many solutions (5,1)
Answers (1)
How many times does 8 go into 54
Answers (2)
Jake split 1.5 liters into 4 buckets. How many milliliters of water did he put in each bucket?
Answers (2)
Write y = - 2x in standard form. Then graph the function.
Answers (1)
What is the domain of f (x) = √x + 2? A. all real numbers greater than or equal to 2 B. all real numbers C. all real numbers greater than or equal to 0 D. all real numbers greater than 0
Answers (1)
New Questions in Mathematics
The quotient of a number and 5, less 10, is 3
Answers (1)
Circle O is represented by the equation (x+7)
Answers (1)
How many solutions does the equation 2 - 4x + 4 = 0 have
Answers (2)
Tulio's plant 40 inches tall in May. InJune, it grew 3 inches. In July, it grew 4 times as much as it grew in june.
Answers (1)
To keep heating costs down for a structure, architects want the ratio of surface area to volume as small as possible. An expression for the ratio of the surface area to volume for the square prism shown is 2b+4h/bh.
Answers (1)