The FOIL Method is a process used in algebra to multiply two binomials. The lesson on the Distributive Property, explained how to multiply a monomial or a single term such as 7 by a binomial such as (4 + 9x).
But, what if there was a binomial instead of a single term outside of the parentheses? That is, what if a binomial was being multiplied by another binomial? An example of this is given in the problem.
Let's see an algebra question on this .
Question:-
Solve the equations by using foil method.
(y+1)(2y-3) = 25
Answer:-
Let's see how to solve equations using FOIL method.
(y+1)(2y-3) =25
2y2-3y+2y-3=25
2y2-y-3 = 25
2y2-y-3-25=0
2y2-y-28=0
2y2-8y+7y-28=0
2y(y-4)+7(y-4)=0
(y-4)(2y+7)=0
y-4=0 or 2y+7=0
y=4 or y= -7/2
y = 4 or -7/2 is the Answer
But, what if there was a binomial instead of a single term outside of the parentheses? That is, what if a binomial was being multiplied by another binomial? An example of this is given in the problem.
Let's see an algebra question on this .
Question:-
Solve the equations by using foil method.
(y+1)(2y-3) = 25
Answer:-
Let's see how to solve equations using FOIL method.
(y+1)(2y-3) =25
2y2-3y+2y-3=25
2y2-y-3 = 25
2y2-y-3-25=0
2y2-y-28=0
2y2-8y+7y-28=0
2y(y-4)+7(y-4)=0
(y-4)(2y+7)=0
y-4=0 or 2y+7=0
y=4 or y= -7/2
y = 4 or -7/2 is the Answer
