UTILIZANDO O MÉTODO DA SOMA E DO PRODUTO DAS RAIZES, encontre o conjunto solução das equações do 2o grau abaixo: a) x 2 − 11x − 60 = 0 b) x 2 + 8x + 16 = 0 c) x 2 − 14x + 24 = 0

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

it would open into a square depending on the type of envelope i’m not sure about the second part

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

happy to

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