Solve the quadratic equation by completing the square . x ^ 2 + 4x - 3 = 0

a) x=4 pm sqrt 7

b) x=2 pm sqrt 7

c)x=-4 pm sqrt 7

d) x=-2 pm sqrt 7

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem

This is so hard and it’s for a test

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?