Answer:
76
Explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 ( a ≠ 0 ) , then the discriminant is
Δ = b² - 4ac
Given
3x² - 10x = - 2 ( add 2 to both sides )
3x² - 10x + 2 = 0 ← in standard form
with a = 3, b = - 10, c = 2 , then
b² - 4ac = (- 10)² - (4 × 3 × 2 ) = 100 - 24 = 76