Question

(5y+4)(5y-4)
??
solve multiply foil method

Answer 1

What is the part that you need help on?

Answer 2

Foil method.

Answer 3

What do the letters of FOIL stand for?

Answer 4

First
Outter
Inner
Last

Answer 5

F-first
o-outer
i-inner
l-last

Answer 6

good, so now, do you remember the distributive property?

Answer 7

multiply the first numbers. example 5y*5y=25y(square)

Answer 8

foil, is essentially distributing a polynomial to another polynomial

Answer 9

i need the answser. i know how to do it its just when i did it by hand and cheked on online calculator it came out diffrent

Answer 10

(5y+4)(5y-4)
Using FOIL method:
Multiply the FIRST terms of the two quantities
5y(5y) = ?
------------
Multiply the OUTER terms of the two quantities
5y(-4) = ?
-------------
Multiply the INNER terms of the two quantities
4(5y) = ?
-------------
Multiply the LAST terms of the two quantities
4(-4) = ?

Answer 11

can you show me your work please @jackelyn_1234 then I can see where you went wrong

Answer 12

(5y+4)(5y-4)
25y^2-20y+20y+0
25y^2
thats what i got

Answer 13

25y(square)-40y-16...
@shinalcantara is that correct?

Answer 14

that way you get it right next time :)

Answer 15

recheck the middle term @megz08

Answer 16

no megz, but you may want to check this out www.openstudy.com/code-of-conduct

Answer 17

@jackelyn_1234 , how did you get a zero for the last term?

Answer 18

25y(square)-16?

Answer 19

4*-4= o no?

Answer 20

Can you recheck the last term @jackelyn_1234 ?

Answer 21

nah, what is 4*4 normally?

Answer 22

16

Answer 23

then what happens when you multiply a positive and a negative number?

Answer 24

good,

Answer 25

25y(square)-20y-20y-16= 25y(square)-16
how about this?
@jackelyn_1234 @shinalcantara

Answer 26

you have the correct answer, but your work is wrong meg, check your signs

Answer 27

i understand

Answer 28

i multiplied wrong

Answer 29

you just added @jackelyn_1234, but also, you can simplify your answer

Answer 30

oh. i got it.. 25y(square)-20+20-16

Answer 31

you have 25y^2+20y-20y-16, so my question is what is 1+(-1)=? How about 6+(-6)=? Or even (-100)+100=? so how about y+(-y)=?

Answer 32

@jackelyn_1234

Answer 33

sorry about the sign

Answer 34

it's ok happens to all of us. But considering I lose 25% of my grade on mistakes like that, I like to make sure others don't

Answer 35

yeah, so true!! @FibonacciChick666

Answer 36

help

Answer 37

Circle the first term in the trinomial. multiply it by each term in the binomial, and place each result in the spaces provided. Repeat the proccess for the second and third term of the trinomial until all of the spaces are filled in.

(3x^3-2x^2+7)(x^3+2x)

___+____+____+_____+____+____

Answer 38

make a new question so it's cleaner please

Answer 39

thats what the problem says i cant put in in any words

Answer 40

a new post on this site I mean, so that we don't have to scroll down through all the other posts

Answer 41

ohh ok