x2 + 20x +0 =30 [(20/2)2 =100] x2 + 20x + 100 =30 +100 √(x+10)2=√130 x+10=√130 x= −10+√130 √ means square root
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No because the discriminant of the given quadratic expression is less than zero.
3x2+14x+8 = 0 x = -2/3 or x = -4
Well, darling, to solve for t when t squared equals 169, you simply take the square root of both sides. So, t equals plus or minus the square root of 169, which is 13. Easy peasy lemon squeezy. Now go show off your math skills, honey!
x=b-a
If: x^2 +18x = 29 Then completing the square: (x+9)^2 -81 = 29 or (x+9)^2 = 110