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4 votes
If p=7,q=5,r=3 find value of p2+q2-r2


User Sakurako
by
5.2k points

2 Answers

6 votes

Answer:

Just simply change the variables with their values

7 x 2 + 5 x 2 - 3 x 2

14 + 10 - 6

24 - 6 = 18

18 is the answer

Hope this helps

Explanation:

User NEAnnam
by
5.1k points
4 votes

Answer: The value is 18.

Explanation:

Since we already know what p, q, and r equal, we can use what we know and plug in the numbers:

p=7, q=5, and r=3,

p2=7*2=14

q2=5*2=10

r2=3*2=6

In conclusion, 14+10-6=18

The value of p2+q2-r2 is 18.

User Alex Karahanidi
by
5.3k points