Question

factorize xpower4-7xsquare+12

Answer 1

HELLO DEAR,

LET X²=Y
AND X⁴=(X²)²=Y²


${y}^{2} - 7y + 12 = 0 \\ = > {y}^{2} - 4y - 3y + 12 = 0 \\ = > y(y - 4) - 3(y - 4) = 0 \\ = > (y - 3)(y - 4) \\ = > y = 3 \\ and \: \: y = 4$
x² = y 
x² = 3 or x² = 4
x = √3 
x = -√3 
x = 2 
x = 2 

I HOPE ITS HELP YOU DEAR,
THANKS