yz
9
x * y * z (* means multiply)
The expression xy + z represents the sum of the product of x and y with the value of z. This is a simple algebraic expression where x and y are variables representing numbers, and z is a constant value. To find the result of xy + z, you would first multiply x and y, and then add the value of z to the product.
To solve for x when z equals y divided by x, you can rearrange the equation to isolate x. Start by multiplying both sides by x to get xz = y. Then, divide both sides by z to solve for x, giving you x = y/z. This is the solution for x when z equals y divided by x.
You could say it's "the product of number A and number B squared".For example,Let's call our two unknown numbers y and z.You're asking "what is y*z*z ?"Any number times itself is the number squared, so y*z*z = y*z^2Product means multiply, so y*z^2 is the product of y and z squared.Be careful though, as the sentence could be interpreted as (y*z)^2 rather than y*z^2. Perhaps it's even better to say "the product of y and the square of z".
xy + y = z xy = z - y (xy)/y = (z - y)/y x = (z - y)/y
The expression y^4 - z^4 can be factored using the difference of squares formula. It can be written as (y^2 + z^2)(y^2 - z^2), which can be further simplified to (y^2 + z^2)(y + z)(y - z).
yz means to multiply y times z. So you just replace the values, and do the multiplication.
1st equation: x-y-z = 0 2nd equation: 2x-y+2z = 1 3rd equation: x-y+z = -2 Multiply all terms in 1st equation by 3 then add all equations together:- So: 6x-5y = -1 Multiply all terms in 3rd equation by 2 and subtract it from the 2nd equation:- So: y = 5 Therefore by means of substitution: x = 4, y = 5 and z = -1
If x = y and y = z then x = z
In BASIC, this could be as simple as: 10 Input X 20 Input Y 30 Z=X+Y 40 Print X;" + ";Y;" = ";Z 50 END In JAVA... /** * A simple calculator that adds, subtracts, multiplies, and divides. * Written in Java by: AustinDoggie */ public class Calculator() { public Calculator() { // don't really have to do anything here } public int add(int x, int y) { int z = x + y; // add two numbers return z; // and return it } public int subtract(int x, int y) { int z = x - y; // subtract two number return z; // and return it } public int multiply(int x, int y) { int z = x*y; // multiply two number return z; // and return it } public int divide(int x, int y) { int z = x/y; // divide two numbers return z; // and return the result } } Hope that helps.
x=abs(y+z) x=+(y+z)=y+z x=-(y+z)=-y-z