Question

CHALLENGE!
Factorise:
e. 1.6x² - 4y²/
2y+0.4x​

Answer 1

$1.6 {x}^{2} - 4y { }^{2} \div 2y + 0.4x$

answer is =

$1.6x {}^{2} - 2y + 0.4x$

Answer is that

Answer 2

$0.4(4 {x}^{2} - 10 {y}^{2} ) \0.4(5y + x) \\ ({2x})^{2} - (\sqrt{10} {y})^{2)$

$0.4(4 {x}^{2} - 10 {y}^{2} ) \div 0.4(5y + x) \\ = (2 {x})^{2} - (\sqrt{10}y) {}^{2} \div 5y + x \\ = (2x + \sqrt{10} y)(2x - \sqrt{10} y) \div 5y + x$

a