Write the quadratic equation in general form. What is the value of b2 - 4ac? 1 = 2x2 + 7x

+3

(1) Answers

BrindaHolstine

If 1 = 2x² + 7x
then 2x² + 7x - 1 = 0
From that equation, b = 7, a = 2 and c = - 1
∴ b² - 4ac = (7)² - 4 (2) (-1)
= 49 + 8
= 57
∴ The equation has two real roots