Factorise:81ab^2-4B^2+12bc-9c^2

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Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

How do i multiply two digit numbers