0
How do you solve this by using the quadratic formula 28x2-47x equals 15?
Wiki User
∙ 14y ago
28x^2 - 47x = 15
28x^2 - 47x - 15 = 0
ax^2 + bx +c = 0,
so:
a = 28
b = -47
c = -15
quadratic formula:
[-b^2 + sqrt(4*a*c)] / 2*a AND
[-b^2 - sqrt(4*a*c)] / 2*a
[47^2 + sqrt(4*28*-15)] / 2*28 AND
[47^2 - sqrt(4*28*-15)] / 2*28
then just do the math
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How do you solve 0 equals x squared minus ten x plus 16?
Solve using the quadratic formula
Solve this quadratic equation x2 plus 2x - 22 equals 0?
Using the quadratic equation formula:- x = 3.795831523 or x = -5.795831523
What quadratic function would be used to solve -2x2 plus 9x equals 12?
-2x2 + 9x - 12 = 0Then apply the quadratic formula.
How do you solve 4x2 - 4x plus 2 equals 0?
If you can't factor it easily, use the quadratic formula.
In mathematics how does one use the quadratic formula?
The Quadratic formula in mathematics is used to solve quadratic equations in algebra. The simplest way to solve these equations is to set each of the factors to zero and then solve each factor separately.
How do you solve 0 equals x squared minus ten x plus 16?
Solve using the quadratic formula
What equation could you use to solve o equals 4x2-3x-2?
Quadratic equation formula
Solve this quadratic equation x2 plus 2x - 22 equals 0?
Using the quadratic equation formula:- x = 3.795831523 or x = -5.795831523
What quadratic function would be used to solve -2x2 plus 9x equals 12?
-2x2 + 9x - 12 = 0Then apply the quadratic formula.
What is the quadratic formula for?
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.
How do you solve 16x2 - 24x plus 7 equals 0?
If you can't factor it easily, use the quadratic formula.
How do you solve 4x2 - 4x plus 2 equals 0?
If you can't factor it easily, use the quadratic formula.
In mathematics how does one use the quadratic formula?
The Quadratic formula in mathematics is used to solve quadratic equations in algebra. The simplest way to solve these equations is to set each of the factors to zero and then solve each factor separately.
Solve this quadratic equation x2 plus 5x plus 3 equals 0?
I suggest you use the quadratic formula. In this case, a = 1, b = 5, c = 3.
How do you solve x squared minus ten x plus six equals zero?
It can be solved by using the quadratic equation formula.
Solve the following equation using the quadratic formula. -5X2 equals -7X plus 6?
X= (3/5 , -2)
Solve a2 plus 30a plus 56 equals 0?
a2+30a+56=0 , solve for a Using the quadratic formula, you will find that: a=-2 , a=-28
