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3 years ago

How do I factor this polynomial? q^2-121

Mathematics

1 answer:

Tresset [83]3 years ago

5 0

$q^2-121 =q^2-11^2=(q-11)(q+11)\\ \\ \\a^2-b^2 =(a-b)(a+b)$

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The distance between any 2 points P(a,b) and Q(c,d) in the coordinate plane, is given by the formula:

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Using this formula we calculate the distances |PA|, |PB|, |PC|, |PD| and |PE| and compare to 5.

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