Using the quadratic formula to solve 7x2 – x = 7, what are the values of x?
Asked by wiki @ in Mathematics viewed by 437 People
Asked by wiki @ in Mathematics viewed by 437 People
Answered by wiki @
How the quadratic formula works:
For any quadratic equation ax² + bx + c = 0, the solution is .
In the case of our equation 7x² - x = 7, first we need to subtract 7 from each side so that we have 0 on the right.
7x² - x - 7 = 0
Identify the values of a, b, and c.
a = 7, b = -1, and c = -7.
Plug these into our quadratic formula and solve.
There are two values for x: (1+√197)/14 and (1-√197)/14.
The approximate values for these are 1.073976 and -0.931119.
Asked by wiki @ in Mathematics viewed by 356 persons
Asked by maham237 @ in Mathematics viewed by 568 persons
Asked by maham237 @ in Mathematics viewed by 498 persons
Asked by wiki @ in Mathematics viewed by 424 persons
Asked by wiki @ in Mathematics viewed by 376 persons
Asked by maham237 @ in Mathematics viewed by 366 persons
Asked by wiki @ in Mathematics viewed by 454 persons
Asked by wiki @ in Mathematics viewed by 825 persons
Asked by admin @ in Mathematics viewed by 381 persons
Asked by admin @ in Mathematics viewed by 318 persons
Asked by admin @ in Math viewed by 361 persons
Asked by admin @ in Mathematics viewed by 286 persons
Asked by admin @ in Mathematics viewed by 302 persons
Asked by maham237 @ in Mathematics viewed by 372 persons
Asked by admin @ in Mathematics viewed by 344 persons
Asked by maham237 @ in Mathematics viewed by 18373 persons
Asked by admin @ in Mathematics viewed by 8164 persons
Asked by admin @ in Mathematics viewed by 5793 persons
Asked by maham237 @ in Mathematics viewed by 3939 persons
Asked by maham237 @ in Mathematics viewed by 3261 persons
Asked by maham237 @ in Mathematics viewed by 2928 persons
Asked by maham237 @ in Mathematics viewed by 2804 persons
Asked by maham237 @ in Mathematics viewed by 2588 persons
Asked by maham237 @ in Mathematics viewed by 2484 persons
Asked by maham237 @ in Mathematics viewed by 2438 persons
Asked by maham237 @ in Mathematics viewed by 2423 persons
Asked by maham237 @ in Mathematics viewed by 2079 persons
Asked by maham237 @ in Mathematics viewed by 1799 persons