3 years ago

If an equation has two roots -4 and 7, what could be the quadratic equation?

Mathematics

1 answer:

aleksklad [387]3 years ago

8 0

Answer:

f(x) = x^2 - 3x - 28

Step-by-step explanation:

The root -4 corresponds to the factor (x + 4); the root 7 corresponds to (x - 7). The equation is thus f(x) = (x + 4)(x - 7) = x^2 - 3x - 28, or

f(x) = x^2 - 3x - 28

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