Question

p^2 -p^2=7 and p-q =2

find the value of p + q

Answer 1

its p square - q square = 7

we write it (p+q) (p-q)

given that p-q = 2

so p + q = 7/2

Answer 2

Answer:

${p}^{2} - {q}^{2} = (p - q)(p + q) =2(p + q) = 7 \\ p + q = \frac{7}{2}$