Question

P(x)=x²-15 then find √p(3)-p(-2)

Answer 1

Answer:

$p(x) = {x}^{2} - 15 \\ p(3) = {3}^{2} - 15 = 9 - 15 = ( - 6) \\ p( - 2) = { - 2}^{2} - 15 = 4 - 15 = ( - 11) \\ \\ \sqrt{p(3) - p( - 2)} \\ \sqrt{ - 6 - ( - 11)} \\ \sqrt{ - 6 + 11} \\ \sqrt{5}$