All the factors of 25

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6