Question

if p-q=16 and p×q=20 then what is p+q​

Answer 1

Answer:

(p-q)² = p²+ q² - 2pq

16² = p² + q²- 2(20)

256 = p²+ q²- 40

p² + q² = 296.

After this,

(p+q)² = p²+q² + 2pq

(p+q)² = 296 + 40

p+q = √336

p+q = 18.33

Step-by-step explanation:

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Answer 2

Answer:

8

Step-by-step explanation:

(p+q)^2=p^2+q^2+2pq

=( (p-q)^2+2pq)+2pq

=16+20+20

=56

(p+q)^2=56

p+q=8