SOLUTION: Hi, my math book does not explain the "step by step" procedure so I don't know how to do each step. Would you please explain how you came up with each answer? thank you. x^2+x

Question 406025: Hi, my math book does not explain the "step by step" procedure so I don't know how to do each step. Would you please explain how you came up with each answer?
thank you.
x^2+x-20=0
x=-b+-sqrt b(^2-4ac)/(2a)
x= x sqrt (x^2-4(1)(20))/(2(1))
x= sqrt (x^2-80)/ (2(1)) Now i am stuck, how to sqrt or factor it

Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!

till here you were absolutely right
Look at formula of the quadratic equation , a, b are coefficients before and , c is the free term
so , , , put in formula

or
or
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