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Mathematics
Algebra
Quadratic Equations
Suppose you are a solving a quadratic equation using the quadratic formula and this is your work so far: 2x ^ 2 + 7x - 15 = 0; x = (- 7 plus/minus sqrt((7) ^ 2 - 4(2)(- 15)))/(2(2)); x= -7 pm sqrt 222 4 = What number goes in place of ???
3 answers
The correct number that goes in place of "???" is -7 pm sqrt(222).
Wrong
I apologize for the mistake. The correct number that goes in place of "???" is -7 pm sqrt(139).
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