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(x-2/7)(2-x)=-2
We move all terms to the left:
(x-2/7)(2-x)-(-2)=0
Domain of the equation: 7)(2-x)!=0We add all the numbers together, and all the variables
x∈R
(+x-2/7)(-1x+2)-(-2)=0
We add all the numbers together, and all the variables
(+x-2/7)(-1x+2)+2=0
We multiply parentheses ..
(-1x^2+2x+2x^2-2/7*2)+2=0
We multiply all the terms by the denominator
(-1x^2+2x+2x^2-2+2*7*2)=0
We get rid of parentheses
-1x^2+2x^2+2x-2+2*7*2=0
We add all the numbers together, and all the variables
x^2+2x+26=0
a = 1; b = 2; c = +26;
Δ = b2-4ac
Δ = 22-4·1·26
Δ = -100
Delta is less than zero, so there is no solution for the equation
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