factorize 5x² - 7
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Step-by-step explanation:
5x²-7
let 5x²-7=0
5x²=7
x²= 7/5
x = +(7/5)^½ or x= -(7/5)^½
(x - sqrt(7/5)), (x + sqrt(7/5)) are factors
so 5x²-7 = (x - sqrt(7/5)) * (x + sqrt(7/5))
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