Solve using elimination or substitution method

Which of the following is the result of expanding

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.