Answer:
Step-by-step explanation:
(x^2 + 4)(x^2 - 4)
x^4 - 4x^2 + 4x^2 - 16
x^4 - 16 <====
The perimeter is just adding all the sides together.
a.) 180 = 40 + 40 + x + x
180 = 80 + 2x Subtract 80 on both sides
100 = 2x Take 1/2 of 100 to get x
x= 50cm
b.) 1000 = 150 + 150 + x + x
1000 = 300 + 2x Subtract 300 on both sides
700 = 2x Take 1/2 of 700 to get x
x = 350
Answer:
x is 16
Step-by-step explanation:
No it's 3, it's sort of like the saying 3 strikes you're out basically after the third time you mess up there is no going back.
