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Mathematics 9 Online
OpenStudy (anonymous):

a2 – 5a – 20

OpenStudy (anonymous):

this is a factor right?

OpenStudy (zale101):

are u familiar with the quadratic formula?

OpenStudy (anonymous):

yes, and yes

OpenStudy (zale101):

what is it?

OpenStudy (anonymous):

Oh ok then it cant be factored. but u can find the solution of this 2 degree equation by quadratic formula

OpenStudy (zale101):

ax^2 + bx + c = 0 is the first step of the quadratic formula the value of x is to factor the quadratic,

OpenStudy (zale101):

a^2 – 5a – 20 = 0 a = 1, b = - 5, c = - 20

OpenStudy (zale101):

put it in a quadratic form a^2 – 5a – 20 = 0

OpenStudy (anonymous):

wait I had an error when writing the quad formula

OpenStudy (zale101):

and plug it in into this formula |dw:1382813097679:dw|

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