Practice problem
Evaluate: (1−−49)(−2−−9)(1-\sqrt{-49})(-2-\sqrt{-9})(1−−49)(−2−−9)
−23+11i-23+11i−23+11i
−23−17i-23-17i−23−17i
19+11i19+11i19+11i
19−17i19-17i19−17i
Type a concept, like “slope” or “photosynthesis”.
