Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign?A square shaped traffic sign is shown with length of one side labeled as 2x minus 1.4x2 − 14x2 + 14x2 + 4x − 14x2 − 4x + 1Please
Accepted Solution
A:
To find the area you will multiply the length by the width.
Because it is a square, these are the same.
A = lw (2x - 1)(2x -1) 4x^2 -4x + 1(the last choice)
To get this multiply the first 2 terms in each parenthesis.
2x(2x)= 4x^2
Then multiply the first term in the first ( )by the last term in the last ( ).
2x(-1) = -2x
and then multiply last term in the 1st ( ) by the first term in the last ( ).
Same as above = -2x
Finally, multiply the last terms in both parenthesis