-15?
Maby
Sorry if this is wrong.... Just trying to help!
Answer:
Here. Tell me if you don't understand my writing.
P=18
l=5 cm greater than the width
w=5 less than the length
USE YOUR NUMBER SENSE!!! - just plug in different number below 4 to figure out the width
3=w 3+5=8 8+8=16+6=22 WILL NOT WORK
2=w 2+5=7 7+7=14 14+2+2= 18 WE HAVE A WINNER!!!!
FInal Answer: width: 2 cm and length: 7 cm
(x)(x)= x^2
(-8)(x)= -8x
(x)(1)= 1x
So, (-8)(1)=8
