Seudónimo Seudónimo
  • 03-04-2020
  • Mathematics
contestada

How many solutions does this quadratic equation have ? y=x^2-8x-20

Respuesta :

Officialalehpeter
Officialalehpeter Officialalehpeter
  • 03-04-2020

Answer: y=x+2 or x-10

Step-by-step explanation:

Y=x2-8x-20

Quadratic equation

Variables of -20 that will give -8 are

-10 &+2

Substitute into the equation

Y=x2-10x+2x-20

Y=x(x-10)+2(x-10)

Y=(x+2)(x-10)

The two equations are

Y=x+2 or

Y=x-10

Answer Link

Otras preguntas

Plz help me if you know the answer plz and thank you :)
How many groups of 4 balls can be selected from a bag of 10 balls?
Which expression can be used to calculate 15 1/2% of 3500?​
A system of linear equations is graphed. Which ordered pair is the best estimate for the solution to the system? (0, −2) (−412, 212) (−4, 212) (0, 7)
Please help (x + 7/2) = (I don't what sign it is but it says plus minus square root sign over 5/2) ​
the lengths of two sides of a triangle are 2x-5 and x+3. If the perimeter of the triangle is 4x-1, what is the length of the third side in terms of x?
what is the value of r if 3r =243​
please help me i dont understand
WILL BE MARKED BRAINLY
Select all of the proportional relationships