Please answer the question in order please.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

5.(04.07) two different plants grow each year at different rates, which are represented by the functions f(x) = 4* and g(x) = 5x + 2. what is the first year the f(x) height is greater than the g(x) height? year 3 year 0 year 2 year 1

What are the soultion(s) to the quadratic equation 40- x^2=0