Question
Factorize: $20 x^3-40 x^2+80 x$
✓
Answer
The greatest common factor of the terms
$20x^3, -40x^2$ and 80x of the expression $20x^3- 40x^2+ 80x$ is $20x$
Now,
$20 x^3=20 x \cdot x^2-40 x^2=20 x-2 x$ and $80 x=20 x \cdot 4$
Hence, the expression $20x^3- 40x^2+ 80x$ can be factorised as $20x(x^2- 2x + 4)$
$20x^3, -40x^2$ and 80x of the expression $20x^3- 40x^2+ 80x$ is $20x$
Now,
$20 x^3=20 x \cdot x^2-40 x^2=20 x-2 x$ and $80 x=20 x \cdot 4$
Hence, the expression $20x^3- 40x^2+ 80x$ can be factorised as $20x(x^2- 2x + 4)$
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