Find the distance between the points (6,5 √ 2) and (4,3 √ 2)

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

When you answer this can you explain