SOLUTION: the sqrt property tells us that if (2x-9)^2=9 is true then which of the following must also be true? a. 2x=(_is under the +) b. 2x-9=(_is under the +)9 c.2x=(

SOLUTION: the sqrt property tells us that if (2x-9)^2=9 is true then which of the following must also be true? a. 2x=(_is under the +) b. 2x-9=(_is under the +)9 c.2x=(_is under the +)18

Question 636048: the sqrt property tells us that if (2x-9)^2=9 is true then which of the following must also be true?
a. 2x=(_is under the +)
b. 2x-9=(_is under the +)9
c.2x=(_is under the +)18
d.2x-9=(_is under the +)3
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If $\left(2x-9\right)^2 = 9$ , then take the square root of both sides to get ${\color{red}2x-9=\pm3}$

Note: we include the plus minus since and
RELATED QUESTIONS
if sqrt5x-4=sqrtx +3(not under the sqrt sign),then which of the following is... (answered by RAY100)

If b < 2 and 2x � 3b = 0, which of the following MUST BE TRUE? (1)x > -3 (2) x < 3... (answered by Fombitz)

If -3 < k < 3, which of the following must be true? a. k^2 < 3 b. |k| > 3 c. k^2 > 3 (answered by stanbon)

If 2xy=0 and x/2 = 3/4, which of the following must be true? 1. 2y=-3 2. x=-12y 3.... (answered by stanbon)

If 2x+y=8 and x<7, which of the following must be true ? A) y>-6 B) y<-6 C) -6 (answered by Edwin McCravy)
1. Solve. -6x + 3 - 2x = 3 - 8x A) x = -16/3 B) Infinitely many solutions C) x =... (answered by Fombitz)
If a non-zero integer n is chosen such that (2-16/n) is an integer less than 6 Which of (answered by stanbon,Edwin McCravy,vleith)
If a>b, then which one of the following must be true: a) a-b < 1 b) ab > b c) a... (answered by Edwin McCravy)
if the product of five integers is odd which of the following must be... (answered by macston)