Question

the sum and product of two numbers are 8 and 15 respectively,
then the numbers are
a) (-3) &5
b) 3&(-5)
c) 3&5
d) (-3) & (-5)​

Answer 1

Answer:

the right answer is C

Step-by-step explanation:

-3 + 5= 2

3+(-5)=3-5= -2

-3+(-5)=-3-5= -8

there are not the product of 8

but in the option C

3+5=8

the product of the aum is 8

Answer 2

Answer:

Hence, your answer is option, c) 3 & 5

Step-by-step explanation:

Let the two numbers be x and y

x+y=8 – 1st equation

xy=15

y=15/x – 2nd equation

put the above value of y in the 1st equation

x+15/x=8

x^2 + 15= 8x

= x^2 - 8x + 15

= x^2 - 5x - 3x +15

= x(x- 5) - 3(x - 5)

= (x-5)(x-3)

x= 5 or x=3

put the value of x= 5 in 2nd equation

y=15/5

y= 3

put the value of x= 3 in 2nd equation

y= 15/3

y= 5

HOPE IT HELPED,

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