irvingarteaga irvingarteaga
  • 04-01-2019
  • Mathematics
contestada

What are the solutions of a quadratic equation (X-8)2-13(x-8)+30=0

Respuesta :

offguard
offguard offguard
  • 04-01-2019

For know, just set x-8=y. You have the equation [tex]y^2-13y+30=0[/tex]

Solving for y, you get (y-10)(y-3)=0. So, y=10 and y=3.

But we need to add 8 each each because we are solving for x, not y.

So, x=18 and x=11 are your answers.


Answer Link

Otras preguntas

heeeeeeeeelp plsssssssssssssssssssss​
Read the following scenario: A father fights against the government in order to receive fair treatment for his son in public schools. Which type of conflict is
I definitely need help with this difficult math problem. -7x+y^3+7x^3+6x-3y^3-2x^3+3x
(1)write 3 ways diseases are spread and give 2 examples for  the three ways diseases are spread.
Science anybody? I don't know how to answer this question-
(-0.4)^3 - (-0.4)^2.(-3)
Solve the system of equations using matrix, not linear.
What is the value of the expression All of 2.6 multiplied by 10 to the power 9 over all of 1.3 multiplied by 10 to the power 2? (5 points) 1.3 × 107 2.0 × 107 1
In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper,
Why were tax laws like the Stamp Act, Sugar Act, and Townshend Acts passed by England? (A)To help the colonist become more independent (B)To help colonist mak