Kathleen Valenzuela

Mathematics

18 July, 07:13

Zacharias is using the quadratic formula to solve the equation 0 = - 2x2 5x - 3. he begins by substituting as shown. quadratic formula: x = substitution: x = what error did zacharias make? the - 5 should be 5. the 52 should be - 52. the 2 in the numerator should be - 2. the 2 in the denominator should be - 2.

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