What is sqrt(-25)*sqrt(-4) ?

The solution to sqrt(-25)*sqrt(-4) is -10

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simplify sqrt(-25)*sqrt(-4)

simplify

- 25 \cdot - 4

- 10

Solution steps

- 25 - 4

- 25 = 5 i

= 5 i - 4

- 4 = 2 i

= 5 i 2 i

Multiply the numbers:

5 \cdot 2 = 10

= 10 ii

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 10 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 10 (- 1)

Multiply the numbers:

10 (- 1) = - 10

= - 10

(1 + 3 x)^{7}

\frac{400}{100}

8 \cdot 340 \cdot 3

2 \frac{π}{\frac{1}{4}}

3 x^{2} - 13 x - 30