lacilebeck69641
30.07.2019 •
Mathematics
State the largest solution of (x + 2)^2 - 9 = 0.
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Ответ:
To solve this, the first thing you need to do is to add 9 to both sides to get
(x+2)^2=9
Then, to get rid of the square, square root both sides:
=
When you square root this, you should result in these two equations:
x+2=3
x+2=-3
The reason you have -3 and 3 is because when you square root 9, notice that when you square -3 and 3, you get the same result of 9.
Because of this, you get two solutions when you solve for x which are
x=1 and x=-5
However, the problem asks to state the largest solution of the two solutions, and since 1 is greater than -5, your final solution to this problem would be that x=1.
Ответ:
24
Step-by-step explanation: