Question

if P=2,q=-4 and r=1 find the value of the following

(b) (P+q+r)2
-Pqr​

Answer 1

Answer:

6

Step-by-step explanation:

put the values of p q and r

(2-4+1)×2-(2×-4×1)

(-1)×2-(-8)

-2+8

6

Answer 2

$= > {(2 - 4 + 1)}^{2} - (2)( - 4)(1)$

$= > {( - 1)}^{2} + 8$

$= > 1 + 8$

$= > 9$

Hope this answer helps you ^_^ !