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Mathematics 9 Online
OpenStudy (anonymous):

What is the value of b^2 - 4ac for the following equation? 5x^2 + 7x = 6 A.) 9 B.) 81 C.)169

OpenStudy (luigi0210):

Plug it in.. \(\large (7)^2-4(5)(-6)\)

OpenStudy (luigi0210):

Use \(\large Ax^2+Bx+C=0\)

OpenStudy (campbell_st):

well start by rewriting the equation as 5x^2 + 7x - 6 = 0 then a = 5, b = 7 and c = -6 substitute as @Luigi0210 has shown and evaluate

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