Which of the following represents the area of a rectangle whose length is 3x - 7 and whose length is
x + 2

Question

Which of the following represents the area of a rectangle whose length is 3x - 7 and whose length is 
x + 2

anonymous · Answer

3x2 - 14
3x2 + x - 14
3x2 - x - 14
3x2 + 14

anonymous · Answer

Area = L * W 
so multiply (3x-7)*(x+2)

anonymous · Answer

does that help?
Im assuming you meant one of those to be width

anonymous · Answer

wait so which one is it?

anonymous · Answer

so foil out (3x-7)*(x+2)
do you know how to do that?

anonymous · Answer

no this is an assignment that i have to do to see if I know any of the material im going to learn in this unit. Ive never come across this stuff before.

anonymous · Answer

is it D?

anonymous · Answer

well the area of any rectangle is the height times the width. those terms you have represent the height and the width of the triangle so 
(3x-7)*(x+2)=(3x^2-7x+6x-14)
3x^2-x-14

anonymous · Answer

ohhhhh. i kinda see what you did there. thankyou!

anonymous · Answer

np