Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 4/5

A quadratic has roots 2 and 5. Which equation has these roots?

A
$x^2 + 7x - 10 = 0$
B
$x^2 - 7x + 10 = 0$
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C
$x^2 + 7x + 10 = 0$
D
$x^2 - 7x - 10 = 0$

Explanation

(x-2)(x-5) = x^2 - 7x + 10 = 0

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