Question

4. If p= -2,9=-1 and r = 3, find the value of:
(a) p²+q²-r²
(b) 2p² - q² + 3r²
(d) p² +q³ +r³ +3 pqr (e) 3p²q + 5 pq² +2 pqr
(c) p-q-r
(f) p⁴ +q⁴ - r⁴​

Answer 1

Answer:

where is Q value pls tell

Answer 2

c)p-q-r

$= (- 2 )-1 + 3 \\ = 0$

f)p^4 +q^4-r^4

$= { (- 2)}^{4} + ( - 1)^{4} - (3)^{4} \\ = 16 + 1 - 81 \\ = 17 - 81 \\ = - 64$

e)

$= 3 \times { (- 2)}^{2} \times ( - 1) + 5( - 2) ( - 1) ^{2} + 2( - 2)(3) \\ = - 12 - 10 - 12 \\ = - 34$

Hope this helps