Question

Let g(x)= 2x and h(x)= x*x+4 evaluate the following expression

Answer 1

2x=x^2 +4. Make it equal to zero. so subtract the 2x from the otherside, making it- 0= -2x +x^2 +4. Then factor. find multiples of 4, that when added equal negative 2. Since there aren't any multiples that work use the quadratic equation.