MCQ
Simplify: $z^{2}+11 z^{2}-5 z-11 z^{2}+5 z$
- A$z^{2}$
- ✓$-z^{2}$
- C$5 z$
- D$-5 z$
✓
Answer
Correct option: B.
$-z^{2}$
$(-1+11-11) z^{2}+(5-5) z=-z^{2}$
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