Multiply. Write the result in the form a + bi.
-$\sqrt { - 64 } \cdot \sqrt { - 25 }$
A) $40 \mathrm { i } ^ { 2 }$
B)-40
C) $- 40 \mathrm { i }$
D)40

Name: Multiply. Write the result in the form a + bi. -$\sqrt { - 64 } \cdot \sqrt { - 25 }$ A) $40 \mathrm { i } ^ { 2 }$ B)-40 C) $- 40 \mathrm { i }$ D)40
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Question

Quizplus · Accepted Answer

The multiplication of $\sqrt{-64}$ and $\sqrt{-25}$ equals $\sqrt{64} \cdot \sqrt{25} \cdot i^2$, which simplifies to $8 \cdot 5 \cdot (-1)$ because $i^2 = -1$. Thus, the result is $-40$.

Multiply Write the Result in the Form a + Bi −64⋅−25\sqrt { - 64 } \cdot \sqrt { - 25 }−64​⋅−25​

Multiply Write the Result in the Form a + Bi $\sqrt { - 64 } \cdot \sqrt { - 25 }$