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2 years ago

Which of the following is equal to the rational expression when x*-2 or 3? X^2 +5x+6 X^2-X-6

Mathematics

1 answer:

trasher [3.6K]2 years ago

7 0

Answer:

Step-by-step explanation:

x=-2, x=3

---------------

x^2+5x+6=(-2)^2+5(-2)+6=(-2)(-2)-10+6=4-10+6=-6+6=0

x^2+5x+6=3^2+5(3)+6=9+15+6=24+6=30

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x^2-x-6=(-2)^2-(-2)-6=4+2-6=6-6=0

x^2-x-6=3^2-3-6=9-3-6=6-6=0

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