A=32x2+8x=ℓ⋅wA=8x(4x+1)Given the info you've provided there's really no further we can goℓ=8xw=(4x+1)all you can really say about x is x>0 since length must be positive
A=32x2+8x=ℓ⋅wA=8x(4x+1)Given the info you've provided there's really no further we can goℓ=8xw=(4x+1)all you can really say about x is x>0 since length must be positive