What is the quadratic formula and Unitary method?
For the unitary method see
(Broken Link Removed)
The quadratic formula for the two solutions to the equation
ax^2 + bx + c = 0 is
x = [-b +/- sqrt(b^2-4ac)]/(2a)
Thankyou DRWLS
The quadratic formula is a formula used to solve quadratic equations, which are equations of the form ax^2 + bx + c = 0. The formula states that the roots (or solutions) of a quadratic equation can be found using the following formula:
x = (-b ± √(b^2 - 4ac)) / (2a)
Here, a, b, and c are the coefficients of the quadratic equation, and the ± sign indicates that there are two possible solutions.
To use the quadratic formula, you need to know the values of a, b, and c from your quadratic equation. Once you have those values, you can substitute them into the formula and simplify to find the solutions for x.
On the other hand, the unitary method is a method used in mathematics to solve problems involving units or proportions. It is often used to find the value of a single unit when the value of another unit and the number of units are known. The unitary method is based on the concept of proportions, where you compare two equivalent ratios.
To use the unitary method, you need to set up a proportion using the given information and the unknown value you are trying to find. Then, cross-multiply and solve the equation to find the unknown value.
For example, if you know that 3 kilograms of apples cost $6, and you want to find the cost of 1 kilogram, you would set up the proportion:
3 kg / $6 = 1 kg / x
Cross-multiplying gives you:
3x = 6
And solving for x, you find that 1 kilogram of apples costs $2.
In summary, the quadratic formula is used to solve quadratic equations, while the unitary method is used to solve problems involving units or proportions.