479,273 views
23 votes
23 votes
Please help and show me how you got it as best as possible step by step im struggling and need to show my work

Please help and show me how you got it as best as possible step by step im struggling-example-1
User Bluetech
by
2.7k points

1 Answer

22 votes
22 votes

SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Write the formula for area of a rectangle


Area=length* width

STEP 2: Write the given measure of the sides


\begin{gathered} length=3x+2 \\ width=2x-1 \end{gathered}

STEP 3: Calculate the area

By substitution,


\begin{gathered} Area=(3x+2)(2x-1) \\ \mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd \\ \left(3x+2\right)\left(2x-1\right)=3x\cdot \:2x+3x\left(-1\right)+2\cdot \:2x+2\left(-1\right) \\ =3x\cdot \:2x+3x\left(-1\right)+2\cdot \:2x+2\left(-1\right) \\ =6x^2+x-2 \end{gathered}

Hence, the area of the rectangle is


6x^2+x-2

User Miguel E
by
2.9k points