Ask a New Question

Solve the Following quadratic equations by completing the square.

7x(squared)+4x-13=8

1 answer

7x^2 + 4x - 13 = 8

multiply by 7 to get a perfect square on the 2nd-degree term:

49x^2 + 28x = 147
49x^2 + 28x + 4 = 147 + 4
(7x+2)^2 = 151
7x = -2 ± √151

x = (-2 ± √151)/7

Ask a New Question or answer this question.

Similar Questions

If using the method of completing the square to solve the quadratic equation x, squared, minus, 4, x, plus, 10, equals, 0x2
1. 1 answer
If using the method of completing the square to solve the quadratic equation x, squared, plus, 2, x, minus, 31, equals, 0x2
1. 1 answer
I am trying to define the different appraoches to solving quadratic equations. My book says using quadratic formula, completing
1. 1 answer
Methods: Factoring, completing the square, quadratic formula.for these equations: 1. x^2 - x = 6 2. -2x^2 + 5x - 3 = 0 3. 3x^2 +
1. 1 answer

more similar questions