Question

factorising expression by grouping 1-2x-5x²+10x³​

Answer 1

Answer:

$(1 - 5 {x}^{2} )(1 - 2x)$

Step-by-step explanation:

Given:-

$1 - 2x - 5 {x}^{2} + 10 {x}^{3} \\ \\ make \: a \: pair \: and \: take \\ common \\ \\ 1 - 2x - 5 {x}^{2} + 10 {x}^{3} \\ \\ 1 - 5 {x}^{2} - 2x + 10 {x}^{3} \\ \\ 1(1 - 5 {x}^{2} ) - 2x(1 - 5 {x}^{2}) \\ \\ (1 - 5 {x}^{2} )(1 - 2x)$