Question

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

Answer 1

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

Answer 2

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