Back to Use factoring and completing the square — Problem 1 · Task Set 23

HSF.IF.C.8.a Tutor Intake — Factoring and Completing the Square

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Grade 9·11 problems·~13 min·Common Core Math - HS Functions·standard·hsf-if-c-8a

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Concepts

A quadratic function is written in factored form as $f(x) = 2(x - 4)(x + 1)$ .
Which statement correctly identifies the zeros of $f$ ?

$x = 4$ and $x = -1$

$x = -4$ and $x = 1$

$x = 4$ and $x = 1$

$x = 2$ and $x = 4$