A tricky SAT math quadratic equation problem with discriminant #sat #algebra

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This algebra SAT math video explains how to solve a quadratic equation problem with no real roots using the discriminant of the quadratic equation.

sat , sat tips, sat math , sat math practice, sat math review, sat prep, sat math test prep , October sat predication, quadratic equation , discriminant ,

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25 would be the largest possible value of n.

bartholomew
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If c is twenty-five then the equation 100- 4c would be equal to zero and therefore have one solution since a quadratic has one solution when the discriminant is equal to zero. The smallest number that would make the expression 100- 4c a negative number would be twenty-six since 26 × 4 is equal to 104 and 100 - 104 would be negative four and the negative value means that the quadratic has no real solutions or two imaginary solutions.

elsiddorie