Question

The square of the sum of a number and 3 is 16. Find the number.(There are two solutions.)

Answer 1

1,-7 hope this helps

Answer 2

Answer:

1 , -7

Step-by-step explanation:

(x+3)² = 16

then

(x+3)² = 4²

then

|x+3| = 4

then

x+3=4 or x+3= -4

then

x=4-3=1  or  x= -4-3= -7