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Mathematics 12 Online
OpenStudy (iwanttogotostanford):

HELP PLEASE ALGEBRA: Which of the following represents the area of a rectangle whose length is 5x − 3 and whose width is x + 7?

OpenStudy (anonymous):

What is (x+7)(5x-3) ?

OpenStudy (iwanttogotostanford):

do you FOOIL?

OpenStudy (iwanttogotostanford):

FOIL

OpenStudy (anonymous):

Multiply it out if you want the expanded form.\[(x+7) (5 x-3)=5 x^2+32 x-21 \]

OpenStudy (iwanttogotostanford):

thanks you

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