Question

Factorise : x⁴-3x²+2

Answer 1

Answer:

x4-(2+1)x2+2

=x4-2x2-x2+2

in this way dear.......

Answer 2

Answer:

x⁴-3x²+2

put x²= y

then our new equation will be

y²-3y+2

by splitting we get

y²-2y-y+2

y(y-2)-1(y-2)

(y-1)(y-2)

now re subsitiute

(x²-1)(x²-2)

here is your factor

thank you