Factorise 3x^3-4x^2-28x-16

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Plz 20 points polynomials 1: subtract and simplify (–y^2 – 4y – 8) – (–4y^2 – 6y + 3) 2: multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2 3: multiply and simplify (x – 4) (x2 – 5x – 6)

Angle 1 and angle 2 are a linear pair . m angle 1 =x-39 and m angle 2 =x+61 find the measure of each angle