Skip to content
Athens Academy Islamabad
Home
Subjects
Free Past Papers
Parents' Corner
About
FAQ
☰
Home
Subjects
Free Past Papers
Parents' Corner
About
FAQ
Home
›
Mathematics
›
Chapter 1
›
Quiz
← Back to chapter
Flashcards →
Q
1
/
25
Score:
0
Mathematics · General · Q1/25
Over the complex numbers, $z^{2}+16$ factorises as:
A
it cannot be factorised
B
$(z+4i)(z-4i)$
C
$(z+4i)^{2}$
D
$(z+4)(z-4)$
💡
Write $16=-16i^{2}$, giving a difference of squares.
Next →
⚠ Report a problem
💬