using tow codes make a composite function wtih equation fx x

using tow codes make a composite function wtih equation f(x) x^2+ x and g(x) = 3x

f(g(-2))

f(f(3))

g(f(1))

Solution

we have f(x) = x²+x and g(x) = 3x.

Hence

f(g(-2)) = f[ 3*-2] = f(-6) = (-6)² + (-6) = 36 - 6 = 30

f(f(3)) = f [ 3²+3 ] = f (12) = 12² + 12 = 144 +12 = 156

g(f(1)) = g[ 1²+1] = g(2) = 3*2 = 6.