Question

simplify and find the value please ​

Answer 1

Answer:

The value of the expression is 308.

I hope it's correct...

Step-by-step explanation:

$7pq(2q {p}^{2} - 3p {q}^{2} + 6pq( - p + q) \\ 7pq(2 {p}^{2} q - 3p {q}^{2} - 6 {p}^{2} q + 6p {q}^{2} ) \\ 7pq( - 4 {p}^{2} q + 3p {q}^{2} ) \\ - 28 {p}^{3} {q}^{2} + 21 {p}^{2} {q}^{3}$

putting p=-2 and q=1 in the above equation....

-28(-2)^3(1)^2 +21(-2)^2(1)^3

-28(-8)(1) + 21(4)(1)

224+84

308

Answer 2

Answer:

State two differences between RAM and ROM.