Question

7) If p+q=10 and pq=21, find 3(p+q).​

Answer 1

Answer:

since p+q = 10

then 3(p+q) = 3(10) = 30

ANSWER = 30

Answer 2

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If P+Q = 10

And p×q=21

Then p = 7 and q = 3 or p= 3 and q=7

because

7+3=10

and 7×3=21

Find

3(p+q)

3( 7+ 3)

3×10

30