-40-5

Rewrite -40 as -1(40).

-1(40)-5

Rewrite -1(40) as -1⋅40.

-1⋅40-5

Rewrite -1 as i.

i⋅40-5

Rewrite -5 as -1(5).

i⋅40-1(5)

Rewrite -1(5) as -1⋅5.

i⋅40-1⋅5

Rewrite -1 as i.

i⋅40i⋅5

i⋅40i⋅5

Cancel the common factor.

i⋅40i⋅5

Rewrite the expression.

405

405

Combine 40 and 5 into a single radical.

405

Divide 40 by 5.

8

Factor 4 out of 8.

4(2)

Rewrite 4 as 22.

22⋅2

22⋅2

Pull terms out from under the radical.

22

The result can be shown in multiple forms.

Exact Form:

22

Decimal Form:

2.82842712…

Divide ( square root of -40)/( square root of -5)