Question

Welp pls.i’m so confused

Answer 1

Length = 17 units

Width = 1 unit

Explanation:

`A = l * b`

`17 = (2x+1) (x-7)\\17 = 2x^(2) -14x+x-7\\17 = 2x^(2) -13x-7\\2x^(2) -13x-7-17=0\\2x^(2) - 13x -24=0\\(2x+3) (x-8)=0\\x=-(3)/(2) or x=8\\`

but x cannot be negative because length and width cannot be negative;

`x\\eq -(3)/(2) : x = 8`

Length:-

`=2x +1\\=2(8)+1\\=17units`

Width:-

`=x-7\\=8-7\\=1 unit`