Malene wrote the equation x² + 8x + 60 = x² + 12x + 20 to show that the area of a changed rectangle is 60 cm² greater than the area of the original rectangle. how did the rectangle change?
1 was added to each side.
2 was added to each side.
8 was added to each side.
10 was added to each side.

2 was added to each side

Step-by-step explanation:

Given that a rectangle when changed sides, the area became 60 greater than the original

The equation given is

From the above equation we can see that the original area was

and it changed to

Original rectangle dimensions= factors of area terms = x , x+8

New rectangle dimensions = factors of

=x+2, x+10

Thus we have both length and width increased by 2 units.

answer is x<