The operation*is defined over the set of ordered pairs by(a, b)*(c, d) . Determine whether or not this operation is commutative, find the identity element for*. Given that the inverse of (a, b) is (c, d)find an expression for c and d in terms of a and b. hence find the inverse of (2,1)​

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

nope lol

step-by-step explanation:

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x