Question

Factorise (4-9x^4) pls tell the answer

Answer 1

Hi there!

Answer :-

☆ GIVEN EXPRESSSION ☆

$\bf\red{(4 - {9x}^{4} )}$

☆ SOLUTION ☆

$\bf\blue{( {2)}^{2} - ( {( {3x)}^{2}) }^{2} }$

Apply Identity a² - b² = (a+b)(a-b)

$\bf\pink{(2 + (3 {x})^{2} )(2 - ( {3x})^{2} )}$

$\bf\green{(2 + 9 {x}^{2} )(2 - {9x}^{2})}$

Answer 2

answers is (2+3x²) (2-3x²)