Question

(2.5p - 1.5q)^2 - (1.5p - 2.5 q)^2




Do not Scam or I will report ​

Answer 1

Answer:

this question was very easy

you just need to use (a-b)² = a² + b² - 2ab

Answer 2

Answer:

$= (2.5 - {1.5q)}^{2} - (1.5p - {2.5)}^{2}$

$= 6.25 {p}^{2} + 2.25 {q}^{2} - 7.50pq - (2.25 {p}^{2} + 6.25 {q}^{2} - 7.50pq)$

$= 6.25 {p}^{2} + 2.25 {q}^{2} - 7.50pq - 2.25 {p}^{2} - 6.25 {q}^{2} + 7.50pq$

$= 4 {p}^{2} - 4 {q}^{2}$