This is a quadratic equation with a general equation of ax^2 + bx + c. The quadratic formula can help to get the roots of the equation. We know the highest degree of that equation is 2; so there will be also two roots. The quadratic formula is x = [-b ± √(b^2 - 4ac)] / 2a
With a = 1, b = 7, c = 2, x = {-7 ± √[(7)^2 - 4(1)(2)]} / 2(1) = (-7 ± √41) / 2
So the two roots are x1 = (-7 + √41) / 2 = -0.2984 x2 = (-7 - √41) / 2 = 0.2984
This is also another way of factorizing the equation (x + 0.2984)(x + 0.2984) = x^2 + 7x + 2
