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Popular >

simplify sqrt(-x)*sqrt(-y)

Solution

simplify

- x \cdot - y

Solution

- x y

Solution steps

- x - y

- x = i x

= i x - y

- y = i y

= ii x y

Apply exponent rule:

a^{b} \cdot a^{c} = a^{b + c}

ii = i^{1 + 1}

= x i^{1 + 1} y

Add the numbers:

1 + 1 = 2

= x i^{2} y

i^{2} = - 1

= (- 1) x y

Refine

= - x y

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expand (y-2)(y^2-4y-9)expand

(y - 2) (y^{2} - 4 y - 9)

Frequently Asked Questions (FAQ)

What is sqrt(-x)*sqrt(-y) ?
The solution to sqrt(-x)*sqrt(-y) is -sqrt(x)sqrt(y)