How do you FOIL (1-3y)(7-4y)?

Leroy Little

Leroy Little

Answered question

2022-02-08

How do you FOIL (1-3y)(7-4y)?

Answer & Explanation

dimljenihhml

dimljenihhml

Beginner2022-02-09Added 15 answers

FOIL is short for First, Outside, Inside, Last
It helps you to remember all the combinations when multiplying two bracketed terms each containing two expressions.
For your example, we have
First :(1*7)=7
Outside: (1*-4y)=-4y
Inside: (-3y*7)=-21y
Last: (3y4y)=12y2
Add these together to get the answer:
(1-3y)(7-4y)
(=F+O+I+L)
=74y21y+12y2
=725y+12y2

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