Answer:Hence, in the given expression, p = -0.6220Step-by-step explanation:Here, the given expression is:x = -10 and x + √7 - 7 p = -3 Now, substitute x = -10 in the second equation, we get:x + √7 - 7 p = -3 ⇒ -10 + √7 - 7 p = -3Substituting √7 = 2.645751Solving, it further, we get-10 + √7 - 7 p = -3-10 + 2.645751 + 3 = 7 p or, -4.354248 = 7 por, p = -4.354248/7 = -0.6220or, p = -0.6220Hence, in the given expression, p = -0.6220