Which of the following is not a polynomial identity? A. a2 - a3 = (a - b)(a2 + ab + b2)
B. a2 - b2 = (a + b)(a - b)
C. (a2 + b2)(c2 - d2) = (ac-bd)2 + (ad + bc)
D. (a + b)2 = a2 + 2ab+ b2

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

Simplify 1/3 12x - 6 a. -2x-1 b.-2x-8 c.-x+4 d.3x+10 e. 4x-2