Question

Expend the following using algebraic formula :
(0.5p-0.2q)square ​

Answer 1

Answer-

$= 0.25p^{2} - 0.2pq - 0.4q^{2}$

Step-by-step explanation:

0.5p and 0.2q are considered a single term.

Using the given identity

$= (a-b)^{2} = a^{2} - 2ab - b^{2} \\ = 0.5p^{2} - (0.5p)(2)(0.2q) - 0.2q^{2} \\ = 0.25p^{2} - 0.2pq - 0.4q^{2}$