Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(9x + 5)(9x - 5)

A. 486x2 - 25x
B. 81x - 25
C. 486x2 - 90x + 25x
D. 81x + 45x  + 25

Answer: A

Mathematics

You might also like to view...

Use a special product formula to simplify.(8a3 - b2)(8a3 + b2)

A. 64a6 - 16a3b2 + b4 B. 64a6- b4 C. 64a6 + b4 D. 64a6 + 16a3b2 + b4

View
Mathematics

Find the linearization L(x) of f(x) at x = a.f(x) = , a = 27

A. L(x) = x + 1
B. L(x) = x + 2
C. L(x) = x + 1
D. L(x) = x + 6

View
Mathematics

Determine whether (f(g(x)) = x and whether (g (f(x)) = x.f(x) = , g(x) = x

A. No, yes B. Yes, no C. Yes, yes D. No, no

View
Mathematics

Sketch the graph of the polynomial function.f(x) = (x + 2)4 + 3

A.

B.

C.

D.

View
Mathematics