Question

Factorise 2x³ + 3√5x+5​

Answer 1

2x²+3√5x+5=0

2x²+2√5x+√5x+5=0

2x(x+√5)+√5(x+√5)=0

(x+√5)(2x+√5)=0

x=-√5, -√5/2

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