(3)125-8x³=0(4)x²+1=1.01

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(3)125-8x³=0(4)x²+1=1.01
(3)125-8x³=0(4)x²+1=1.01

(3)125-8x³=0(4)x²+1=1.01
(3)125-8x³=0 125 = 8x³ (2x)³ = 5³ 2x = 5 x = 2.5
(4)x²+1=1.01 x² = 1.01 - 1 x² = 0.01 x1 = 0.1 x2 = -0.1

x=2.5
x=0.1