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
AURORKA [14]
3 years ago
10

Solve this equation please 5X2 - 15 = 5​

Mathematics
1 answer:
Lena [83]3 years ago
4 0

Answer:

x = 2 or x = -2

Step-by-step explanation:

5x² - 15 = 5​

⇌

5x² = 15 + 5

⇌

5x² = 20

⇌

x² = 20/5 = 4

⇌

x² = 2²

⇌

x² - 2² = 0

⇌

(x - 2)(x + 2) = 0

⇌   we use the zero product property

x - 2 = 0 or x + 2 = 0

⇌

x = 2 or x = -2

You might be interested in
Pete has 3 dollars less than what Linda has. If together has 81 dollars how much does each person have?
Makovka662 [10]

Answer:

Pete: 39, Linda: 42

Step-by-step explanation:

Suppose Pete has x dollars. If he has 3 dollars less than Linda, then Linda has 3+x dollars. Together, they have 81 dollars:

x+3+x=81

2x+3=81

2x=78

x=39

Since Pete has x dollars, and x=39, he has $39.

Linda has 3+x, which is 39+3 = $42

<em>I hope this helps! :)</em>

8 0
3 years ago
In math, a statement that shows that two expressions are equal.
adoni [48]

Answer:

= this is that two expression two equal numbers

8 0
1 year ago
5/6 + (-1/2)value of sum
bulgar [2K]

Answer:

it's 1/3

Step-by-step explanation:

5/6+(-1/2)

5/6-1/2

LCM= 6

(5-3)/6

2/6

1/3

8 0
3 years ago
What is the square root of 5?
shutvik [7]
5 x 5 = 25

answer: 25.
7 0
3 years ago
Read 2 more answers
Amanda walked 2.5 miles to the post office and another 1.6 miles to the park then she walked home following the same route how f
adell [148]
2.5+2.5+1.6+1.6= 8.2 miles

Hope this helps!
8 0
3 years ago
Other questions:
  • What is 99999999+-4?
    10·2 answers
  • You have a new pool and want to know it’s volume. The pool is 5 feet deep and has a radius of 7 feet. About how much water can t
    5·2 answers
  • Without solving the equation, determine the nature of the roots of x^2 - 2x - 8 = 0.
    5·1 answer
  • How to convert 120 barrels to quarts
    6·1 answer
  • Can someone please help me by answering number 54!!! Need it now PLEASE!!!
    9·1 answer
  • Which of the following numbers can be expressed as a decimal that terminates?
    14·1 answer
  • Solve by using elimination 3x-2y=1. 8x+3y=2
    8·1 answer
  • Use the following table to answer the question below.
    13·1 answer
  • Express sin S as a fraction in simplest terms. R S​
    5·1 answer
  • What is the answer to this problem?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!