Find the product and write the result in standard form.
-$$( 2 + 5 i ) ( 2 - 5 i )$$
A) 29
B) $4 - 25 \mathrm { i } ^ { 2 }$
C) $- 21$
D) $4 - 25 \mathrm { i }$

Name: Find the product and write the result in standard form. -\[( 2 + 5 i ) ( 2 - 5 i )\] A) 29 B) $4 - 25 \mathrm { i } ^ { 2 }$ C) $- 21$ D) $4 - 25 \mathrm { i }$
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Question

Quizplus · Accepted Answer

The product of $(2 + 5i)(2 - 5i)$ is $4 - 25i^2$. Since $i^2 = -1$, the expression simplifies to $4 - 25(-1) = 4 + 25 = 29$.

Find the Product and Write the Result in Standard Form (2+5i)(2−5i)( 2 + 5 i ) ( 2 - 5 i )(2+5i)(2−5i)

Find the Product and Write the Result in Standard Form $( 2 + 5 i ) ( 2 - 5 i )$