SOLUTION: find the sum or diffrence (x2 + 2x + 1) + 4x2 + 5x + 3) i know that the end is +7x + 4 but i cant figure out the x2 + 4x2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: find the sum or diffrence (x2 + 2x + 1) + 4x2 + 5x + 3) i know that the end is +7x + 4 but i cant figure out the x2 + 4x2      Log On