Question

The product of the roots of x² + 6x - 55 = 0 is:
A. -55
B. -6
C. 55

Answer 1

The correct answer is: [A]: " -55 " .
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Note:
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x² + 6x − 55 = 0 ;

-11, 5 ==> -11 + 5 = -6 ;
-5, 11 ==> -5 + 11 = 6 ; Yes:

So, factor into: (x − 5) (x + 11) = 0 ;

The roots:
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x = 5;
x = -11 ;
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The product: 5 * -11 = -55 ; which is: "Answer choice: [A]: " -55 " .
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