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OpenStudy (anonymous):
Solve the equation using quadratic formula show work please. I don't understand? this is my study guide for a test and i don't understand. Any help would be appreciated!! 1. x^2-7x-18=0 2. w^2=4w-1 3. -7z=-4z^2-3
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OpenStudy (anonymous):
Quadratic form is \[-b +/-\sqrt{b ^{2}-4ac}\div2a\]
OpenStudy (anonymous):
@Kentekai thank you!
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