26-08-2014
Mathematics

Answered

How do you solve 5/x=x-4

Answer :

konrad509 konrad509

26-08-2014

[tex]\frac{5}{x}=x-4\\ x\not=0\\ 5=x^2-4x\\ x^2-4x-5=0\\ x^2+x-5x-5=0\\ x(x+1)-5(x+1)=0\\ (x-5)(x+1)=0\\ x=5 \vee x=-1[/tex]

Answer Link

Other Questions

number 1 I need help with confused

The edge of one cube is 4 m shorter than the edge of a second cube. The volumes of the two cubes differ by 1216 m^3. Find the edge of the smaller cube.

A molecule of nitrogen gas consists of two nitrogen atoms joined together. Write the formula of nitrogen gas.

The golfer hits the golf ball. The quadratic y=-8*x^2 +48*x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball

From the equations 7a = 4 and 7a + 4b = 12, one can conclude that b is? Please explain the work behind the solution

How do u do this ??? Alistair buys an antique chair for £600. It is expected to increase in value at the rate of 4.5% each year. How much is it expected to be w

A rectangle whose perimeter is 80 m has an area of 384 m^2. Find the dimensions of the rectangle.

Name two things found in a plant cell that are not found in an animal cell.

area is 320 square feet width is 4/5 length

Explain why shorelines are always changing