if a = 2 , b =3 the value of the expression 7(b²-a²) is
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The value of the expression 7(b² - a²) is 35.
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Answer:
a=2
b=3
to find
7(b²-a²)
=7(3²-2²)
=7(9-4)
=7(5)
=35
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