Question

factorise:4x^4+7x^2-2​

Answer 1

Answer:

The solution is in the pic.

Answer 2

Answer:

put x^2 as y

4y^2 +7y-2=0

4y^2 +8 y -1y -2=0

4y(y+2) -1(y+2)=0

(y +2)(4y-1)=0

●y=-2

x^2=-2

○ans will be underoot -2

●4y=1

x^2=1/4

○ans will be 1/2