Find the value of the following algebraic expression :-
a) (p² - q + r) + (q² - r + p) + 1
Answers
Answered by
1
Answer:
Answer
Given:(p
2
+q
2
+r
2
)(pq+qr)
Substituting p=2,q=−3 in the above equation, we get
=(2
2
+(−3)
2
+r
2
)(2×−3+(−3)r)
=(4+9+r
2
)(−6−3r)
=−(13+r
2
)(3r+6)
=−(39r+78+3r
3
+6r
2
)
=−(3r
3
+6r
2
+39r+78)-by-step explanation:
Answered by
1
Step-by-step explanation:
(p² - q + r) + (q² - r + p) + 1
= p² - q + r + q² - r + p + 1
= p²-q+q²+p+1
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