Question

$15x {}^{4} + 3x {}^{2} - 18$

factorise it please it's very urgent don't spam
answer is
$(5x {}^{2} + 6)(3x {}^{2} - 3)$
but I want step by step answer​

Answer 1

Answer:

15x^4+3x^2-18

= 15x^4+(18-15)x^2-18

=15x^4+18x^2-15x^2-18

= 3x^2(5x^2+6)-3(5x^2+6)

=(5x^2+6)(3x^2-3)

Answer 2

Answer:

di,

mele se gusha to nahi ho naa aap

Step-by-step explanation:

agal ho to thnx mt dena

and nhi ho to de dena

XD

chaliye di, apna khayal rakhna