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masya89 [10]
3 years ago
8

Use the quadratic formula to solve x² + 9x + 10 = 0.

Mathematics
2 answers:
valentina_108 [34]3 years ago
7 0
C.x=-7.7 and x=-1.3 should be the answer
maxonik [38]3 years ago
6 0
C SOULD BE THE RIGHT ANSWER
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Answer:

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Step-by-step explanation:

Since we are given z1 = 2 + √(3)i and z2 = 1 – √(3)i. The sum of z1 + z2 would be:

(2 + √(3)i) + (1 – √(3)i) = 2 + √(3)i + 1 – √(3)i = 2 + 1 + √(3)i – √(3)i = 3

Hence, z1 + z2 = 3.

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3 years ago
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