5) Which of the following quadratic equation has roots -3 and -5 ?​

2 thoughts on “5) Which of the following quadratic equation has roots -3 and -5 ?​”

1. Answer:

   let alpha be -3 and beta be -5

   Step-by-step explanation:

   alpha + beta = -3+ -5

   =-3 -5

   = -8

   alpha × beta = -3 ×-5

   = -15

   therefore, the quadratic equation

   = x^-(alpha+ beta)x + alpha×beta =0

   = X^- (-8)x +(-15)=0

   x^+8x-15=0

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2. Answer:

   xsquare +8x +15

   Step-by-step explanation:

   sum of zeroes= -8

   product=15

   equation with zeroes as -5 and -8

   =k(x square – sum(x)+ product)=0

   k is any non zero natural number

   0=x square +8x+15 if k=1

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