Donte simplified the expression below.

4(1 + 3i) – (8 – 5i) = –4 + 8i

What mistake did Donte make?
A.He did not apply the distributive property correctly for 4(1 + 3i).
B.He did not distribute the subtraction sign correctly for 8 – 5i.
C.He added the real number and coefficient of i in 4(1 + 3i).
D.He added the two complex numbers instead of subtracted.

Question

Donte simplified the expression below.

4(1 + 3i) – (8 – 5i) =  –4 + 8i

What mistake did Donte make?
A.He did not apply the distributive property correctly for 4(1 + 3i).
B.He did not distribute the subtraction sign correctly for 8 – 5i.
C.He added the real number and coefficient of i in 4(1 + 3i).
D.He added the two complex numbers instead of subtracted.

anonymous · Answer

he got -4 which is right 
but 8i he got from 3i+5i

anonymous · Answer

so it should be A