Na turma de Jaqueline, um terço dos alunos são meninas e dessas, dois quintos já fizeram aniversário esse ano. Supondo que na turma de Jaqueline há 30 alunos
e que todas as meninas fazem festa de aniversário, quantas festas ainda haverá
esse ano?​

Cis your correct answer

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*