It can't be solved because the discriminant of the given quadratic equation is less than zero meaning it has no real roots.
It can be solved by using the quadratic equation formula.
You can't because it is not a quadratic equation.
I suggest you use the quadratic formula, with a = 3, b = -2, c = 7.
x2+x-15 = 0 Using the quadratic equation formula: x = 3.405124838 or x = -4.405124838
Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.
x^(2) - 10x + 16 = 0 Factors of '16', which are, 1,2,4,8,16. Select two numbers from this list that add/subtract to '10' . They are '2' and '8'. Setting up brackets ( x 2)(x 8) Since '16' is positive(+), then both signs must be the same. Since '10x' is negative (-) , then both signs are negative. Hence (x - 2)(x - 8 ) = 0 When x - 2 = 0 x = 2 & when x - 8 = 0 x = 8 So the two answers are ,2, & ,8, .
The quadratic formula is used to solve the quadratic equation. Many equations in which the variable is squared can be written as a quadratic equation, and then solved with the quadratic formula.
It can be solved by using the quadratic equation formula.
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You can't because it is not a quadratic equation.
I suggest you use the quadratic formula, with a = 3, b = -2, c = 7.
Using the quadratic equation formula: x = 8.42 or x = -1.42
You don't need to use the quadratic formula because:- 5r2 = 80 Divide both sides by 5: x2 = 16 Square root both sides: r = 4
x2+x-15 = 0 Using the quadratic equation formula: x = 3.405124838 or x = -4.405124838
Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.Use the quadratic formula, with a = 1, b = -10, c = 29.
Use the quadratic formula. x = -4.265564 or -0.234436
To find the solution to this equation, you need to rearrange the terms and solve for the variable. 4 = 2b + b^2 can be rewritten as b^2 + 2b - 4 = 0. You can then solve this quadratic equation by factoring, completing the square, or using the quadratic formula.