Request a call back

# ICSE Class 9 Answered

the sum two number x and y is 10 and their product is 8.
Asked by melodygaming0017 | 17 Sep, 2021, 08:45: PM
Given information :-

Sum of numbers ,  X + Y = 10 .................... (1)

Product of numbers ,  X Y = 8  ....................(2)

From eqn.(1) , we get , Y = ( 10 - X )

If we substitute Y in eqn.(2) , X ( 10 - X ) = 8  or  X2 -10X + 8 = 0 ................(3)

Roots of above quadratic equation are  5+   and  5 -
Numbers are same as roots of quadratic equations .

Hence numbers are , 9.123 and 0.877
Answered by Thiyagarajan K | 17 Sep, 2021, 11:20: PM

## Concept Videos

ICSE 9 - Maths
Asked by padmavathipethakamsetty | 12 Jul, 2022, 07:06: PM
ICSE 9 - Maths
Asked by Omnangare4576 | 15 Jan, 2022, 05:43: PM
ICSE 9 - Maths
Asked by ispriyagurung490 | 25 Nov, 2021, 09:30: PM
ICSE 9 - Maths
Asked by yadlapallieswarrao | 02 Nov, 2021, 09:05: PM
ICSE 9 - Maths
Asked by melodygaming0017 | 17 Sep, 2021, 08:45: PM
ICSE 9 - Maths
Asked by harsh0103017 | 09 Jun, 2021, 12:46: AM