Question

यदि दो संख्या का योगफल 12 है और गुणनफल 35 हो तो संख्या निकाले​

Answer 1

Step-by-step explanation:

let first no. to be=x

let sec.no to be =y

Acc. to question

x+y=12....(1)

xy=35.....(2)

from eq (1)....

x=12-y

put value of x in eq(2)....

(12-y)×y=35

12y-y2=35

0=y2-12y+35

0=y2-5y-7y+35

0=y(y-5)-7(y-5)

(y-5)(y-7)=0

y-5=0,y-7=0

y=5,y=7 put value of y in eq...(1)

x+5=12

x=12-5

x=7. similarly,

for y=7,x=5

so the no are 5 and 7.