karinarevenko90
karinarevenko90 karinarevenko90
  • 26-03-2020
  • Mathematics
contestada

What is the positive root of the equation x^2 -2x=120?

Respuesta :

ghanami
ghanami ghanami
  • 07-04-2020

Answer:

x=12

Step-by-step explanation:

hello :

x² -2x=120  equivalent : x² -2x+1=120+1

(x-1)² = 121   means : (x-1)² = 11²...(*)

if :  x ≥0    (*) equivalent : x-1=11   so : x=12

Answer Link

Otras preguntas

What is 0.006 written as a fraction of a percent?
Solve for x: x-1/4=1/2 help please
What algebraic property does this statement show? 3 + (–7) = (–7) + 3   A. associative property   B. symmetric property   C. commutative property   D. closure p
What word doesn't belong in this group? That, hat, what, mat, cat, sat, pat, or chat?
What is an equivelent expression for 4(x+5)+2(x+3)
Why should you ask people questions about school or their jobs?
What word doesn't belong in this group? That, hat, what, mat, cat, sat, pat, or chat?
The numbers 7, 24, and c are a Pythagorean triple. What is the value of c?   A. 31
which value is equivalent to 15.2% written as a decimal
What are prashastis?