martinx3 martinx3

14-06-2016
Mathematics

Answered

y = x2 + 12x + 30

8x − y = 10

Verified Answer :

14-06-2016

So you need the solve for x and y ?

from 8x-y = 10,
y = 8x -10

Plug this in other equation.
8x-10 = x^2 +12x + 30

Re-arrange and combine like terms,
x^2 +12x -8x +30+10 = 0
x^2 +4x +40 = 0

This does not have any real solutions.
So there are no real values of x and y satisfying the 2 equations.

Are you sure the question is correct? or if this question belongs to complex numbers topic?

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