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1/7x^2+22=15
We move all terms to the left:
1/7x^2+22-(15)=0
Domain of the equation: 7x^2!=0We add all the numbers together, and all the variables
x^2!=0/7
x^2!=√0
x!=0
x∈R
1/7x^2+7=0
We multiply all the terms by the denominator
7*7x^2+1=0
Wy multiply elements
49x^2+1=0
a = 49; b = 0; c = +1;
Δ = b2-4ac
Δ = 02-4·49·1
Δ = -196
Delta is less than zero, so there is no solution for the equation
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