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Mathematics 19 Online
OpenStudy (anonymous):

solve for r using quadratic formula r^2+3r-4=0

OpenStudy (anonymous):

a = ? b = ? c = ?

OpenStudy (anonymous):

that should help you

jhonyy9 (jhonyy9):

r*2 +3r -4 = 0 3 (+/-) (9+16)*(1/2) 3 +/- 5 r_1 = 4 r_1,_2 = -------------------- = --------- r_2 = -1 2 2

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