Answer:
(a+b)^2+(a-b)^2=2(a^2+b^2)
expanding:
a² + 2ab + b² + a² -2ab + b² = 2a² + 2b²
2a² + 2b² = 2a² + 2b²
Let the number of reptiles on endangered list be 'x'
2x + 16=158
2x=158-16
2x=142
x=71
So there are 71 reptiles on the endangered list
Answer
-64
just use ur calculator since my teacher let us use the calculator i just typed in 16.(-4) and got -64
3) 3(8b + 3)
4) 57
I’m pretty sure that this is the answer
