Question

if A and B are roots of x square + 5 x + 1 equal to zero and 2A + 5 equals to minus 1 then find the value of a​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

x² + 5x + a = 0

If A & B are two roots then :

A + B = -5 and AB = a

2A + 5B = 2(A + B) + 3B = -1

=> 2 x -5 + 3B = -1

=> B = 3

=> A = -5 - 3 = -8

=> AB = a = -8 x 3 = -24