(x + 4)^2 = 81?

1 ⤊

Solve using the square root property

2006-09-25 08:53:41 · 3 answers · asked by spanishfly_100 1 in Education & Reference ➔ Other - Education

3 answers

Take the square root of each side of the equation.

You're left with:
x+4 = 9

Easily solve for x and you get 5.

2006-09-25 08:56:50 · answer #1 · answered by IT Pro 6 · 1⤊ 0⤋

Equation
(x + 4)^2 = 81

Variable
X

Result
Exact

Solution 1 (real)
X= -13

Solution 2 (real)

X= 5

2006-09-25 09:40:51 · answer #2 · answered by snugggyz 1 · 0⤊ 0⤋

Just go to www.algebrahelp.com, click on calculator, which depends on what type of problem this is, and it will solve it for you, even shows the work.

2006-09-25 14:31:33 · answer #3 · answered by Glacier 2 · 0⤊ 0⤋