Question 188199
the square root of x minus 2 minus 7 equals negative 4
Assume the problem is:
{{{sqrt(x-2) - 7}}} = -4
:
Add 7 to both sides:
{{{sqrt(x-2)}}} = -4 + 7
{{{sqrt(x-2)}}} = 3
Square both sides;
x - 2 = 9
x = 9 + 2
x = 11
:
:
Check solution in original equation
{{{sqrt(11-2) - 7}}} = -4
{{{sqrt(9) - 7}}} = -4