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thereddevils
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Homework Statement
4n^2+9m^2-240n-720m+18000=0
Find n+m
Homework Equations
The Attempt at a Solution
I try to express the equation in the form of a(n+m)^2-b(n+m)+c=0 but i couldn't find a way to do so .
Axiom17 said:What calculations have you done so far? If you show what attempts you've made so far then can see how it's going.
cycy said:can someone pls show me the full step working?
Sorry, but at this forum that is not how we give help.cycy said:can someone pls show me the full step working?
Try expanding that expression first. Then you can compare it to the original equation.cycy said:thanks for answering...
not really...
i'm just wondering how to get rid of the constant,18000,if we express it as 4(n-a)^2+9(m-b)^2=0
cycy said:thanks for answering...
not really...
i'm just wondering how to get rid of the constant,18000,if we express it as 4(n-a)^2+9(m-b)^2=0
A double quadratic equation is an equation that contains two quadratic terms, typically in the form of x². It is a type of polynomial equation that can be solved using algebraic methods.
A regular quadratic equation contains only one quadratic term, while a double quadratic equation has two. This means that a double quadratic equation will have two solutions, while a regular quadratic equation will have one or none.
The general form of a double quadratic equation is ax² + bx + cx² + dx + e = 0, where a, b, c, d, and e are constants and x is the variable. The equation can also be written in the form of (ax² + bx) + (cx² + dx) + e = 0.
To solve a double quadratic equation, you can use methods such as factoring, completing the square, or using the quadratic formula. It is important to remember to simplify the equation as much as possible before attempting to solve.
Double quadratic equations can be used to model various real-world situations, such as finding the maximum profit for a business, determining the trajectory of a projectile, or predicting the path of a ball rolling down a hill. They are also commonly used in physics and engineering to solve problems involving motion and forces.