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 are supporting details?
The Great Pacific Garbage Patch will be difficult to physically clean up because _______. a. it lies in international waters b. no single nation is responsible
How did conflict affect the political climate in nineteenth-century Europe and the United States?
Who created the emojis and when where they created?
This week laptops are 25% off. If a laptop cost $340 what is it's sale price?
Each screen in an impress presentation is called a _____ A. Page B. Transition C. Layout D. Slide
You wrote investigation results for your company's safety team and want to share the report with the team's members. Which of the following would best protect t
What does ruth do for a living in a raisin in the sun?
what is 150.72 rounded to the nearest cubic unit
Write an inequality to represent the situation THE TEMPERATURE STAYED ABOVE 15 DEGREES