cheyenned cheyenned
  • 13-04-2017
  • Mathematics
contestada

so how would you break down the problem(2x-5)^2=49

Respuesta :

AndyBryer
AndyBryer AndyBryer
  • 13-04-2017
To solve this you first expand the brackets.
4x^2 - 20x + 25 = 49
Then make it equal 0.
4x^2 - 20x - 24 = 0
Now solve the quardratic.

x^2 - 5x - 6 = 0
(x - 6)(x + 1) = 0
x = 6 or x = -1
Answer Link
chul
chul chul
  • 13-04-2017
First, simplify the equation.

4x2−20x+25=49

Step 2: Subtract 49 from both sides.

4x2−20x+25=49 - 49

4x2−20x−24 =0

Step 3: Factor left side of equation.

4(x+1)(x−6)=0

Step 4: Set factors equal to 0.

x+1=0 or x−6=0

Your answers:
x=−1 or x=6


Answer Link

Otras preguntas

Which statement best describes the 1964 Gulf of Tonkin Resolution? It provided additional US military aid to the government of North Vietnam. It prohibited the
_____ are examples of consumer markets Soft goods Soft goods Selling services to businesses Selling services to businesses Services Services Selling finished go
Why are the triangles congruent?
What is the pH of the solution if the molarity is 0.065M[H+]
Please help me pleasee
Nirmala lives in sarlahi.she was born there.(into relative clause)​
What kind of photos are often found alongside written articles in newspapers, magazines, online news sources, textbooks, etc.? * A Nature B Fine Art C Portraits
PLEASE HELP PLEASEEEEEEEEE!?!?!!!!!!!
Please help me with this too ,​
look at the picture at the bottom to solve also brainliest