Solve the equation for all values of x by completing the square. x²-6x=40

Question

asked Oct 21, 2023 234k views

1 Answer

Thanh Trung · Answer 1 · 2023-10-27T07:35:59+0000

Solution

For this case we have the following:

And solving we got:

Then we can take square root and we got:

$x-3=\pm7$

Then the two solutions are:

x= 10

x= -4