Question

If p+q=7 and p-q=3,then what is the value of 2(p2+q2)?​

Answer 1

Answer:

28

Step-by-step explanation:

explanation in attachment

Answer 2

Answer:

58

Step-by-step explanation:

p+q=7

p-q=3

On adding both equation, we get

2p=10

p=5

On putting value of p in any of the equations, we get

q=2

Now, we have to calculate

2(p^2+q^2)

2(5^2+2^2)

2(25+4)

2(29)

58