Question

a^2+2b=7
b^2+4c=-7
c^2+ab=-14 then find a^2 + b^2 + c^2

Answer 1

a^2 + 2b = 7
a^2 = 7 - 2b

b^2 + 4c = -7
b^2 = -4c-7

c^2 + ab = -14
c^2 = -ab - 14


go from there

Answer 2

but the answer is given as 14 ..numerical .!

Answer 3

what lesson is this based on?

Answer 4

the chapter is equations ..:/

Answer 5

Probably have to use substitution to solve. Looks gross.

Answer 6

there are second degree terms too ...substitution will be a lot tiring ..! okay if substituion then how ..approach ?

Answer 7

good luck...

Answer 8

i cant do that ..! so should i close it then

Answer 9

I agree with @shamil98 ...olving three linear equations is bad enough.

I'm sure it's doable with substitution. I am not willing to spend time trying to show you how to do it.

Answer 10

even me too ..:/ okay .!

Answer 11

this is the answer