Question

What are the solutions of the quadratic equation (x + 3)2 = 49?

O x=-2 and x = -16
O x = 2 and x = -10
O x= 4 and x = -10
O x = 40 and x = -58

Answer 1

The solutions of the quadratic equation x = 4 and x = –10

Explanation:

Answer 2

4 and -10

Explanation:

Take the square root:

x +3 = ±√49 = ±7

Subtract 3:

x = -3 ± 7

For the minus sign, we have ...

x = -3 -7 = -10

For the plus sign, we have ...

x = -3 +7 = 4

The solutions are x = 4 and x = -10.