X 2 + 1 x 2 = 7 . Find the value of x 3 + 1 x 3 =
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x^2+2=7
or x^2=5
x=√5
x^3+3x1= (√5)^3+3=5√5+3
or x^2=5
x=√5
x^3+3x1= (√5)^3+3=5√5+3
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