Question

if p = -3 ,q=-1and r=4 find the value of p^3+q^3+r^3-3pqr​

Answer 1

Answer:

0

Step-by-step explanation:

p=-3 , q=-1, r = 4

p^3 + q^3 +r^3 - 3pqr

(-3)^3  +  (-1)^3  + (4)^3 -3(-3)(-1)(4)

-27 - 1 + 64 -36 = 64-64 = 0

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Answer 2

Answer:

Value of $p^3+q^3+r^3-3pqr$  is $0$ .

Step-by-step explanation:

To find : value of $p^3+q^3+r^3-3pqr$

Given : $p = -3 ,q=-1$ and $r= 4$

Solution :

• According to question we have find the value of given expression $p^3+q^3+r^3-3pqr$   by substituting the given value of $p,q,r$ .
• Therefore on substituting the values by performing arithmetic operations we find the value of expression .

        $p^3+q^3+r^3-3pqr\\\\= (-3 )^{3} + (-1)^{3} + (4 )^{3} -3 (-3 ) ( -1 )(4 )\\\\=-27 -1 + 64 - 36\\\\=-27 +63-36 \\\\= 36 - 36 \\\\=0$