PLS HELP DUE SOON ILL GIVE BRAINLIEST

What is the product of the radical expression. (7-2square root) (8+2 square root)

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!

Ndicate in standard form the equation of the line through the given points. p(0, -4), q(5, 1)