nancy found that x = 1 is one solution to the quadratic equation (x + 2)^2=a. what is the value of…
nancy found that x = 1 is one solution to the quadratic equation (x + 2)^2=a. what is the value of a?\n-9\n-3\n3\n9
Answer
Explanation:
Step1: Substitute x value
Substitute (x = 1) into ((x + 2)^2=a). So we get ((1 + 2)^2).
Step2: Calculate the value
((1+2)^2=3^2 = 9).
Answer:
D. 9