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Roman55 [17]
3 years ago
14

Solve and explain please

Mathematics
2 answers:
lilavasa [31]3 years ago
7 0

Answer:

j₁ = - 2

j₂ = - 9

Step-by-step explanation:

j² + 11j + 18 = 0

j² + 9j + 2j + 18 = 0

j(j+ 9) + 2(j + 9) = 0

(j + 2)(j + 9) = 0

j + 2 = 0 => j₁ = - 2

j + 9 = 0 => j₂ = - 9

Ann [662]3 years ago
3 0

Answer:

j= -9, -2

Step-by-step explanation:

(j+9)(j+2)

j=-9, -2

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