0
FOIL stands for -First- -Outer- -Inner- -Last- each letter of FOIL is the first letter of the four words just mentioned. this is called an acronym.
FOIL is used to factor expressions. Here are a few examples.
(x + 5)(x - 3) [Use the first, outer, inner, last method)
x2 [this is first... its the two x's multiplied together. the x's are the first terms in the problem]
x2 - 3x [this is outer... the -3 and the x are multiplied together. the -3 and the x are the outer terms]
x2 - 3x + 5x [this is inner... the 5 and x are multiplied together. the 5 and x are the inner terms]
x2 - 3x + 5x -15 [this is last... the 5 and -3 are multiplied together. the 5 and -3 are the last terms]
Now add like terms and you get...
x2 + 2x - 15 this is your final answer
This is how you do an expression using FOIL. You go from (x+5)(x-3) to x2+2x-15
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Does the square of x -23 has a solution?
(X - 23)2= X2 - 46X + 529==============Not a solution but an expanded expression.(X - 23)(X - 23)------------------------Distribute by FOIL for above quadratic expression.
Where can the foil method be used?
When multiplying out the brackets in a quadratic equation or expression: f = first o = outer i = inner l = last
What does the F stand for in FOIL?
First. FOIL.. First, Outside, Inside, Last
The foil method is used for?
The foil method in algebra is used to "multiply linear binomials."The FOIL method is used in elementary algebra as a guide for solving algebraic problems.
What is A product in an algebraic expression?
A product is the answer when two expressions are multiplied together. For example: Multiply and simplify (x+2)(x-7), {hint: use the FOIL rule.} x2-7x+2x-14 = x2-5x-14. The product is x2-5x-14.
What is the chemical make of tin foil?
Tin foil is not used today because tin is expensive and rare. It is a British expression and misleading. Cooking foils for foods are generally made from ultrapure aluminium.
Does the square of x -23 has a solution?
(X - 23)2= X2 - 46X + 529==============Not a solution but an expanded expression.(X - 23)(X - 23)------------------------Distribute by FOIL for above quadratic expression.
Where can the foil method be used?
When multiplying out the brackets in a quadratic equation or expression: f = first o = outer i = inner l = last
Is there foil fencing in the Olympics?
Yes, there is individual men's foil, men's team foil, individual woman's foil, and women's team foil.
Is foil a conducter?
Cooking foil is like regular aluminum foil. In summary, cooking foil and tin foil alike are good conductors of heat AND electricity.
Is cooking foil a conducter?
Cooking foil is like regular aluminum foil. In summary, cooking foil and tin foil alike are good conductors of heat AND electricity.
How do you know when to use FOIL?
It is used when multiplying out the brackets of an expression such as (x+3)(x+4) which becomes x^2+4x+3x+12 which when simplified is x^2+7x+12
Will Ham Cook Faster In Foil?
yes the foil keeps in heat and cooks it in the foil
How do you spell foil?
just like that foil
What is an example of foil?
A foil is a literary term.
What elements is used in cookwear and cooking foil?
Tin foil... tin Aluminum foil... aluminum :)
What is hot foil printing?
Foil printing is to print some pattern with the foil on the fabric or paper for shinny effect. There are 2 kind of foil printing method. First, pattern is printed by glue on the fabric or paper, and then pressed with foil paper by hot steel roller. Second is printing on the foil paper first, and then press the foil on the fabric or paper. Of course with hot steel roller or iron. Foil paper look like cooking foil, but it is called the stamping foil paper. Actually it is not the paper but the detachable foil film on the plastic base.
