Find the value of the expression p^2q^2+pq–q^3–p^3 for p=0.5 and q = −0.5
well, just plug and chug.
.5 = 1/2
.5^2 = 1/2^2 = 1/4
.5^3 = 1/2^3 = 1/8
p^2q^2+pq–q^3–p^3
(1/4)(1/4)+(1/2)(-1/2) - (-1/8) - 1/8
1/16 - 1/4 + 1/8 - 1/8
-3/16
.5 = 1/2
.5^2 = 1/2^2 = 1/4
.5^3 = 1/2^3 = 1/8
p^2q^2+pq–q^3–p^3
(1/4)(1/4)+(1/2)(-1/2) - (-1/8) - 1/8
1/16 - 1/4 + 1/8 - 1/8
-3/16