# SOLUTION: 2x squared + 10x = -3 and x squared + 10x - 7 = 0

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 Click here to see ALL problems on Quadratic Equations Question 163261: 2x squared + 10x = -3 and x squared + 10x - 7 = 0Answer by stanbon(57347)   (Show Source): You can put this solution on YOUR website!2x squared + 10x = -3 2x^2 + 10x + 3 = 0 Uset the quadratic formula to get: x = [-10 +- sqrt(100-4*2*3)]/(2*2) x = [-10 +- sqrt(76)]/4 x = [-(5/2) +- (1/2)sqrt(19)] -------------------------------------- and x squared + 10x - 7 = 0 x^2 + 10x -7 = 0 Use the quadratic formula to get: x = [-10 +- sqrt(100-4*1*-7]/2 x = [-10 +- sqrt(128)]/2 x = [-5 =- 4sqrt(2)] ==================================== Cheers, Stan H.