Question

simplify 0.4p-0.5q2 by algebraic identity​

Answer 1

Answer:

Step-by-step explanation:

(0.4p - 0.5q) ^2 = (a - b) ^2

= a^2 + 2ab + b^2

= (0.4p)^2 +2 (0.4p)(0.5q) + (0.5q)^2

= 0.16p ^2 + 0.4pq + 0.25 q^2