kbkbkbkb7307 kbkbkbkb7307
  • 04-05-2018
  • Mathematics
contestada

What number must you add to the expression below to complete the square? x^2-20x?

Respuesta :

calculista
calculista calculista
  • 14-05-2018
we have that
x²-20x
Group terms that contain the same variable
(x²-20x)
Complete the square 
(x²-20x+10²)------> (x-10)²

the answer is
the number must be 100
Answer Link

Otras preguntas

91,007,500 in scientific notation with positive powers of 10
dose anyone know how to solve any of these? 1. W is the midpoint of UV. if UW= x+23, and WV= 2x+8, what is x? 2. W is the midpoint of UV. if UW= x+23, and WV= 2
Twice as number decreased by 9 is 7
For what reason was the "Union Party" created? Who were its candidates?
91,007,500 in scientific notation with positive powers of 10
give me a sentence that has the words prosper and profit
The 10th and the 20th term of an arithmetic sequence are 10 and 40, respectively. Find its 100th term.
The GCF (Greatest Common Factor) of 45 and 75. Show your work too. Thanks for your help!
For what reason was the "Union Party" created? Who were its candidates?
What's the algebraic expression of "4 times a number cubed decreased by 7"?