when n =-2, the value of the expression 5n2+ -2 is 10 . is it true or false
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Answer:
it is false
Step-by-step explanation:
5n2+(-2)
substitute the value of n with -2
=5×(-2)×2+(-2)
=5×(-4)+(-2)
=-20-2
=-22
as, -22 is not equal to 10.
therefore, it is false.
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