6,923 views
10 votes
10 votes
Solve the following quadratic equation for all values of x in simplest form (x+4)²+38=47 ​

User Stephen Cox
by
2.3k points

1 Answer

21 votes
21 votes

Answer:

- 1

Explanation:

( x + 4 )² + 38 = 47

( x + 4 )² = 47 - 38

( x + 4 )² = 9

( x + 4 )² = 3²

Square root on both sides,

x + 4 = 3

x = 3 - 4

x = - 1

User Adam Cameron
by
3.0k points