Answer:
4x^2-4 = 4(x+1)(x-1)
REMEMBER: factoring a perfect square
Step-by-step explanation:
nota entonces jwbsbsbwhe de un 2
1/2*x - 7y = 7
1/2*x - 7 = 7y
1/14*x - 1 = y
y = 1/14*x - 1
c=PI*d
divide both sides by PI to get d by itself
d = c/PI
12
