Asked by help
Multiply
(1-x)(9-8x)
the answer that I came up with is
(x-1)(x-8)
can some help me and if I am wrong help me to solve
(1-x)(9-8x)
the answer that I came up with is
(x-1)(x-8)
can some help me and if I am wrong help me to solve
Answers
Answered by
Reiny
now use FOIL for (x-1)(x-8)
(Broken Link Removed)
to get
x^2 - 9x + 8
(Broken Link Removed)
to get
x^2 - 9x + 8
Answered by
Reiny
LOL
now that was not supposed to happen
here is the real link
http://www.freemathhelp.com/using-foil.html
now that was not supposed to happen
here is the real link
http://www.freemathhelp.com/using-foil.html
Answered by
help
Can you divide using the foil effect
the answer I got then is
8x^2-17x-9
the answer I got then is
8x^2-17x-9
Answered by
Reiny
no, FOIL is an acronym used to multiply two binomials like you had.
(x-1)(x-8)
F -- multiply the "firsts" ---> (x)(x) = x^2
O -- multiply the 'outers' ---> (x)(-8) = -8x
I -- multiply the 'inners' ---> (-1)(x) = -x
L -- multiply the 'lasts' ---> (-1)(-8) = 8
so x^2 - 8x - x + 8
= x^2 - 9x + 8
I don't have a clue how you got your answer.
(x-1)(x-8)
F -- multiply the "firsts" ---> (x)(x) = x^2
O -- multiply the 'outers' ---> (x)(-8) = -8x
I -- multiply the 'inners' ---> (-1)(x) = -x
L -- multiply the 'lasts' ---> (-1)(-8) = 8
so x^2 - 8x - x + 8
= x^2 - 9x + 8
I don't have a clue how you got your answer.