happyaccidents101
happyaccidents101 happyaccidents101
  • 02-12-2020
  • Mathematics
contestada

Solve x2 + 32x = –255 by completing the square.

Question 8 options:

x = –17 and x = –15


x = –17 and x = 15


x = 15


No Real Solutions

Respuesta :

Izzy1974
Izzy1974 Izzy1974
  • 02-12-2020

Answer:

-15, -17

Step-by-step explanation:

x^2 + 32x = –255 move the -255 to the left

x^2 + 32x +255=0

What two number when multiplied equal 255? Those same two numbers when added make 32. 17*15 make 255 and added is 32

(x+15)(x+17) For x+15=0 move the 15 to the other side. x= -15. Same with x+17=0 is x= -17

x= -15, -17

Answer Link

Otras preguntas

what of the following is likely to be researched by an ecologist
The number of one-inch cubes that will fit into a box that is 6 inches wide, blank inches long, and one inch tall is 54. Fill in the blank.
The graph of y=-4x+7 is: A. a line that shows the set of all solutions to the equation. B. a point that shows one solution to the equation. C. a point that show
What are the solutions of the quadratic equation 4x^2 + 34x?
The two giants of the non-alcoholic beverage industry are
A truck with a heavy load drove from Boston to New York at 45 mph. After unloading, it returned from New York to Boston at a speed of 65 mph. What was its avera
Find all the second partial derivatives. v = e5xey
What is the most likely reason the population of these butterflies has been declining?
who is owl eyes and what does he represent
Please help me I need it