The two roots of a quadratic equation are given as x = 1/7 and x = -1/8 . The equation can be written as:

• (7x − 1)(8x − 1) = 0
• (7x − 1)(8x + 1) = 0
• (7x + 1)(8x − 1) = 0
• (7x + 1)(8x + 1) = 0