If \( P = a^2 + a - 1 \) and \( R = -a - 1 \), which expression represents \( P + R \)?

a) \( a^2 + 2 \)
b) \( a^2 - 2 \)
c) \( a^2 + 2a \)
d) \( a^2 + 2a - 2 \)

P = a 2 + a − 1 ; R = − a − 1 P + R = ( a 2 + a − 1 ) + ( − a − 1 ) = a 2 + a − 1 − a − 1 = a 2 − 2 A n s w er : b )

Answered by Anonymous | 2024-06-10

The expression representing P + R simplifies to a 2 − 2 . The correct answer is (b) a 2 − 2 .
;

Answered by Anonymous | 2025-01-26