Question

The rectangle below has an area of 35x^3 square meters and a width of 5x meters.

Answer 1

$a = lw$

$35 {x}^{3} = l(5x)$

$\frac{35 {x}^{3} }{5x} = l$

$7 {x }^{2} = l$

The length is 7x²