Maths Issue

[Anti BBS]

machans any body can solve this.?

 

[kandya]

simplify

 

[Anti BBS]

simplify

(x − a)2 + (2x − b)2 + (3x − c)2 − (a2 + b2 + c2).

x balaya adu karanawa

(1 + 4 + 9)x2 − 2x(a + 2b + 3c) ???

 

[your_love]

 

[kandya]

(x − a)2 + (2x − b)2 + (3x − c)2 − (a2 + b2 + c2).

x balaya adu karanawa

(1 + 4 + 9)x2 − 2x(a + 2b + 3c) ???

substitute a + 2b + 3c =7x and solve

 

[kandya]

 

[Silly point]

bumpz

 

[ruchira55]

7x=(a+2b+3c)
x=(a+2b+3c)/7

(x − a)2 + (2x − b)2 + (3x − c)2 kiyana ekata x walata apu, (a+2b+3c)/7 apply karanna
ethakota ei,
[(a+2b+3c)/7 − a]2 + {[2(a+2b+3c)/7] − b}2 + {[3(a+2b+3c)/7] − c}2

dan, a+2b+3c)/7 kiyana ekata 7x apply karanna

ethakota [(7x/7) − a]2 + [2(7x/7) − b]2 + [3(7x/7) − c]2
hathata hatha kapapan

ethakota ei ara uttare

PS: goda kalekin ban mewa gana hithuwe. waradidia danne naha

 

[Anti BBS]

7x=(a+2b+3c)
x=(a+2b+3c)/7

(x − a)2 + (2x − b)2 + (3x − c)2 kiyana ekata x walata apu, (a+2b+3c)/7 apply karanna
ethakota ei,
[(a+2b+3c)/7 − a]2 + {[2(a+2b+3c)/7] − b}2 + {[3(a+2b+3c)/7] − c}2

dan, a+2b+3c)/7 kiyana ekata 7x apply karanna

ethakota [(7x/7) − a]2 + [2(7x/7) − b]2 + [3(7x/7) − c]2
hathata hatha kapapan

ethakota ei ara uttare

PS: goda kalekin ban mewa gana hithuwe. waradidia danne naha

(x − a)2 + (2x − b)2 + (3x − c)2 − (a2 + b2 + c2).
(1 + 4 + 9)x2 − 2x(a + 2b + 3c)

a + 2b + 3c = 7x

(22 + 32 + 32)x2 − 2x(2a + 3b + 3c)
2a + 3b + 3c = 11x.