# SOLUTION: I tried doing the first part of this problem, but not sure if it is right. I dont know how to do part b. Can you please help me? 1) Using the quadratic equation x2 – 4x – 5 = 0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: I tried doing the first part of this problem, but not sure if it is right. I dont know how to do part b. Can you please help me? 1) Using the quadratic equation x2 – 4x – 5 = 0      Log On

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 Click here to see ALL problems on Quadratic Equations Question 71385: I tried doing the first part of this problem, but not sure if it is right. I dont know how to do part b. Can you please help me? 1) Using the quadratic equation x2 – 4x – 5 = 0, perform the following tasks: a) Solve by factoring. Answer:x=5, -1 Show work in this space. 1x2-4x-5 = (x-5)(x+1) b) Solve by using the quadratic formula. Answer: Show work in this space Answer by stanbon(60771)   (Show Source): You can put this solution on YOUR website!1) Using the quadratic equation x2 – 4x – 5 = 0, perform the following tasks: a) Solve by factoring. Answer:x=5, -1 Show work in this space. 1x2-4x-5 = (x-5)(x+1) b) Solve by using the quadratic formula. Answer: Quadratic formula: x=[-b+-sqrt(b^2-4ac]/2a ----------- x = [4+-sqrt(4^2-4*1*-5]/2 x = [4+-sqrt(36)]/2 x = [4+6]/2 or x = [4-6]/2 x = 10/2 or x = -2/2 x = 5 or x = -1 ------------ Cheers, Stan H.