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If the roots of a quadratic equation are 1±√5, then the product of the roots is:

a) -24
b) -4
c) 26

Respuesta :

ritiguda

Answer:

Its option B -4

Step-by-step explanation:


wegnerkolmp2741o

Answer:

b) -4

Step-by-step explanation:

The roots are (1-sqrt5)  and (1+sqrt(5)

FOIL

first:1*1 =1

outer: 1 * sqrt(5) = sqrt(5)

inner -1*sqrt(5) = -sqrt(5)

last sqrt(5) * - sqrt(5) = -5

Add them together: 1+sqrt(5) - sqrt(5) -5  = -4

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