Determine the solution set of (x + 1)^2 = 25.

{-8, 6}

{-8, 4}

{-6, 4}

Question

Determine the solution set of (x + 1)^2 = 25.



{-8, 6}

{-8, 4}

{-6, 4}

anonymous · Answer

(x+1)^2=
x^2+2x+1
plug in each set.

anonymous · Answer

am i just using the first number of the set or????

anonymous · Answer

@AEB047

whpalmer4 · Answer

$$(x+1)^2=25$$That means that (x+1) represents a number which when multiplied with itself gives you 25.  I'm sure you know that 5 is one of those numbers.  But there is another number as well, can you tell me what it is?

anonymous · Answer

-5?

whpalmer4 · Answer

Yes.  So that means we have two equations to solve for $x$:

$$x+1 = 5$$$$x+1=-5$$The two values you get are the solution set.

anonymous · Answer

oh wow thanks dood

whpalmer4 · Answer

You betcha.  Test out your values in the original equation to make sure they are correct.

anonymous · Answer

so c

anonymous · Answer

i didnt know it was that simple