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-2x^2-25=7
We move all terms to the left:
-2x^2-25-(7)=0
We add all the numbers together, and all the variables
-2x^2-32=0
a = -2; b = 0; c = -32;
Δ = b2-4ac
Δ = 02-4·(-2)·(-32)
Δ = -256
Delta is less than zero, so there is no solution for the equation
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