Which of the following equations demonstrate the set of polynomials is not closed under the certain operation? A. Addition: (x2 + x) + (x + 1) = x2 + 2x+1
B. Multiplication: (x2 - 5x+3)(x - 5) - W - 10x2 +28x-15
C. Division: (x - 5x+3) - (x - 2) = x-3+ ---
D. Subtraction: (3x* + **)-(-2x*+x") = 5x*

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers