1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelechka [254]
4 years ago
14

(5x+1)(5x-1) combine terms

Mathematics
1 answer:
Alinara [238K]4 years ago
5 0

Answer:

25x^2 -1

Step-by-step explanation:

If you multiply parentheses:

(5x*5x) + (5x*-1) + (1*5x) + (1*-1)

25x^2 - 5x + 5x -1

25x^2 -1

A simpler way is to memorize this formula

(Square1 - square2)= (sqrt of square1- sqrt of square2)*(sqrt of square1 + sqrt of sqaure2)

You might be interested in
What is the answer to f/3+4=8
Musya8 [376]

Answer:

so it would be f=36

Step-by-step explanation:

subtract 4 to the other side then multiply both sides by 3

4 0
3 years ago
Add 7 plus 8, then add a to the result. Write an expression for the sequence of operations described.
Ipatiy [6.2K]

Answer:

(7 + 8) + a is your answer

4 0
3 years ago
For 32 = 5X + 2, what is the first step in solving for X?
nikitadnepr [17]

Answer:

-2 from both sides

Step-by-step explanation:

32=5x+2

-2        -2

________

30=5x

__=__

5      5

6=x

4 0
3 years ago
A waiter's weekly salary can be modeled by the equation y = 0.2x + 300, where x is the amount spent by the customers in dollars
butalik [34]

Answer:

A. $100

Step-by-step explanation:

y = 0.2x +300

0.2(500) + 300 = 400

0.2(1000) + 300 = 500

3 0
3 years ago
Find four consecutive even integers such that the sum of the second and fourth and integer is one half times the sum of the firs
Artyom0805 [142]
Okay lets create an eqn from that information

A first int, B second int, C third int, D fourth int.

B = A + 2
C = A + 4
D = A + 6
A is the smallest integer

B + D = 0.5 (A + C) 

Now lets substitute

(A + 2) + (A + 6) = 0.5(A + (A + 4))
now lets dist

2a + 8 = 0.5(2a +4)
2a + 8 = a + 2
a + 8 = 2
a = -6

B = -6 +2
B = -4
C = -6 + 4
C = -2
D = -6 + 6
D = 0

Now using B + D = 0.5(A + C)
-4 + 0 = 0.5(-6 + (-2))
-4 = 0.5 (-8)
-4 = -4

Correct 
Therefore, First integer is -6, second integer is -4, third integer is -2 and fourth integer is 0
8 0
4 years ago
Other questions:
  • If f(x) = 2x - 6, which of these is the inverse of f(x)?
    15·1 answer
  • Jessica is asked to write a quadratic equation to represent a function that goes through the point (8, –11) and has a vertex at
    5·2 answers
  • Plz help with this problem plz
    15·2 answers
  • Margaret is cutting straws that are 4 inches long into 1/2-inch pieces. She has two straws. She needs twenty 1/2-inch pieces. Do
    9·1 answer
  • How do you simplify three fourths divided by two
    12·1 answer
  • 19. Suppose carpet costs $20 per square yard. How much will it cost to carpet
    10·2 answers
  • The length of a rectangle is 5m longer than the width. If the perimeter of the rectangle is 58 m, find its length and width
    12·1 answer
  • 1. two lines meet at a point. set up and solve an equation to find the value of x
    15·1 answer
  • Who is correct?<br> PLease answer ASAP!! pls (:
    13·1 answer
  • Please help! &amp; please explain your answer!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!