Question
Find the smaller solution for 4x2 − 78 = 2
Answers
Reiny
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4x^2 - 78 = 2 ?
if so, then
4x^2 = 80
x^2 = 20
x = ± √20
which of these two solutions is smaller ?
4x^2 - 78 = 2 ?
if so, then
4x^2 = 80
x^2 = 20
x = ± √20
which of these two solutions is smaller ?