First step (7x2 - 16x) - 8 = 0 Second step Factoring 7x2-16x-8
The first term is, 7x2 its coefficient is 7 . The middle term is, -16x its coefficient is -16 . The last term, "the constant", is -8
Step-1 : Multiply the coefficient of the first term by the constant 7 • -8 = -56
Step-2 : Find two factors of -56 whose sum equals the coefficient of the middle term, which is -16 . All of that said it’ll be 2.708 How I got 2.708 is x =(16+√480)/14=(8+2√ 30 )/7= 2.708 And 0.422 is x =(16-√480)/14=(8-2√ 30 )/7= -0.422