Question

If p = 2, q = 1, r= -1, then the value of the following expression :
p²+q²+r²-pqr​

Answer 1

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

Answer 2

Answer:

p²+q²+r²-pqr

(2)²+(1)²+(-1)²- 2×1×-1

4+1+1-2×-1

6-(-2)

6+2

8