lolo4421 lolo4421
  • 02-10-2019
  • Mathematics
contestada

The square of 9 less than a number is 3 less than the number. What is the number?
-12 or 7
-12 or -7
-7 or 12
07 or 12

Respuesta :

linricky linricky
  • 02-10-2019

Answer: D

Step-by-step explanation:

(x-9)² =  x-3

(x-9) (x-9)= x-3

x² - 9x-9x +81 = x-3

x² -18x+81 =x-3

x²-19x+84 =0

(x-12)(x-7)=0

x=12 or 7

Answer Link

Otras preguntas

Longest river in the world located in northeastern africa.
how do i see my answer
Identifying Parts of Speech
a line passes through the point (4, –2) and has a slope of . what is the value of a if the point (–4, a) is also on the line? –6 –5 5 6
3/4 divied be 8/14. please give me answer
What were some laws passed after the us revolution
Use the drop-down menus to complete the statements. when people have more money and eagerly spend it, this increases . this leads to inflation. when the prices
3/4(x+2)=x-2 . solve for x​
A small business is currently using a paper-based system for billing, which is slow and error-prone. Which system upgrade will make their billing process faster
The diameter of a circle is 38 inches. What is the circle's circumference? Use 3.14 for ​.