Consider the polynomial identity: (x+y) ^3 = x^3 +3x^2y + 3xy^2 +y ^3

(a) prove this identity by expanding the left - hand side of the equation.

(b) use your calculator to find the value of 11^3 then use the identity to show the same result. Carefully consider your choice of a and b

Step-by-step explanation:

Polynomial identity:

(A) Expanding above identity by LHS:

Hence , proved.

(B) Value of ,  . Finding the same with help of equation:

Hence , Both produce same result.

(x, y)→(x − 8, y − 7)

step-by-step explanation:

enjoy!

answer: 140

step-by-step explanation:

so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people