jaelyndrew jaelyndrew
  • 22-03-2020
  • Mathematics
contestada

solve for all values of x by factoring
x^2-2x-4=-2x+5

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 22-03-2020

Answer:

x=3      x=-3

Step-by-step explanation:

x^2-2x-4=-2x+5

Add 2x to each side

x^2-2x+2x-4=-2x+2x+5

x^2 -4 =5

Subtract 5 from each side

x^2 -4-5 = 5-5

x^2 -9 =0

This is the difference of squares

(x-3) (x+3) =0

Using the zero product property

x-3 =0    x+3 =0

x=3      x=-3

Answer Link

Otras preguntas

Annie rappels down a cliff in 3 jumps of 6.5 feet each.  Use a positive or negative number to express the change in her altitude.
frank owns an entire block, which happens to be a perfectly square piece of land. one corner of the block is in the intersection of Slauson ave. and carmelita.
A 12 oz bottle of shampoo last 16 weeks. How long would you expect an 18 oz bottle to last
You know the measure of the exterior angle of an isosceles triangle which forms a linear pair with the vertex angle. Describe two ways you can find measures of
Please help me answer this question
is 0.31 greater or less than 0.13
IN THE 1900 HOW WERE THE US SENATE CHOSEN
One number is 4 times as large another. The sum of their reciprocals is 45/4. Find the two numbers
True or false energy is the capacity to do work
Does anyone one how to solve this problem