The area (in square inches) of a rectangle is given by the polynomial function A(m) = m2 + 7m + 12. If the width of the rectangle is (m + 3) inches, what is the length?

Question

The area (in square inches) of a rectangle is given by the polynomial function A(m) = m2 + 7m + 12.  If the width of the rectangle is (m + 3) inches, what is the length?

rishavraj · Answer

length*width = area..
u got the area and width , get the length

anonymous · Answer

how do i do that though with no numbers

rishavraj · Answer

length*(m+3) = m^2+7m+12
$$length = \frac{ m^2+7m+12 }{ m+3 }$$
either u can divide the numerator by denominator...
of proceed by factorising the numeratior

mathmale · Answer

"how do i do that though with no numbers?"  You'll need to do the necessary algebra, which involves mainly variables, such as x, instead of specific numeric values.  See the suggestion of    rishavraj ,    above.   Divide m+3 into   m^2 + 7m + 12, please.  If unsure of what to do, please ask some questions.