Question

Find the zeros of each quadratic function using any method. f(x)=(2x+1)(x-3)

Answer 1

Answer:  x = -1/2    or   x = 3

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Explanation:

Set each factor equal to zero and solve for x. This is using the zero product property.

(2x+1)(x-3) = 0

2x+1 = 0    or    x-3 = 0

2x = -1     or    x = 3

x = -1/2    or   x = 3

If you graphed the function, you should see that it crosses the x axis at -1/2 and at 3.