Easy# Correct Statements

ACTMAT-HLKQJN

Which of the following statements below is/are correct?

**(P)**:

$-4(-3 + 2)$ and $-4 – (3 +2)$ evaluate to the same integer.

**(Q)**:

If the first toss of the coin came down as heads, the probability of the next toss coming down as heads is 50%.

**(R)**:

In the series 1, 3, 27, 2187… each subsequent member is three times the cube of the previous one.

**(S)**:

The expression$ { (x-y) }^{ 3 } $ can be simplified as $(x+y)(x-y)(x+y).$