Answer:
x = -2/5 or 5
Step-by-step explanation:
We assume you want the values of x that make f(x) = 0. These are found using the zero product rule. That tells you a product is zero if and only if at least one factor is zero.
x -5 = 0 . . . . .assume the first factor is zero
x = 5 . . . . . . . add 5
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5x +2 = 0 . . . assume the second factor is zero
5x = -2 . . . . . subtract 2
x = -2/5 . . . . divide by 5
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smaller solution: x = -2/5
larger solution: x = 5
