Find the product and write the result in standard form.
-$- 2 \mathrm { i } ( 7 \mathrm { i } - 4 )$
A) $14 + 8 \mathrm { i }$
B) $- 14 + 8 \mathrm { i }$
C) $8 \mathrm { i } - 14 \mathrm { i } ^ { 2 }$
D) $8 \mathrm { i } + 14 \mathrm { i } ^ { 2 }$

Question

Quizplus · Accepted Answer

The product is found by distributing $-2i$ across the binomial $7i - 4$, resulting in $-14i^2 + 8i$. Since $i^2 = -1$, $-14i^2$ becomes $14$, leading to the standard form $14 + 8i$.

Find the Product and Write the Result in Standard Form −2i(7i−4)- 2 \mathrm { i } ( 7 \mathrm { i } - 4 )−2i(7i−4)

Find the Product and Write the Result in Standard Form $- 2 \mathrm { i } ( 7 \mathrm { i } - 4 )$