Question

The area of a rectangle is 2X squared minus X -21 squared meters.The width is 2X -7 squared meters. What is the length?

Answer 1

ever try just typing the math?

the area is 2x^2-x-21
the width is 2x-7
the length is area/width = (x+3)
check:
(2x-7)(x+3) = 2x^2-x-21 ✅