What are the x- intercepts
y= 0
X= 2
X= 0 and
X= -4
X= 0 and
X= 4

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

Need solving this second acceleration problem.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6