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If x x − bc + x − ca + x − ab = a + b + c what is the value of x ? b + c c + a a + b
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- ab
- ab + bc
- bc + ca
- ab + bc + ca
Correct Option: D
+ | + | = a + b + c | |||
b + c | c + a | a + b |
⇒ | − a + | − b + | − c = 0 | |||
b + c | c + a | a + b |
⇒ | + | + | = 0 | |||
b + c | c + a | a + b |
⇒ x – bc – ab – ac = 0
⇒ x = ab + bc + ac