Question

x^4+3x^2-4

Answer 1

take x^2 = t

Answer 2

t^2 + 3t -4

Answer 3

now solve this quadratic equations

Answer 4

solve or factor?

Answer 5

involves the same procedure

Answer 6

\[(t-1)(t+4)\] and replace t by
\[x^2\] as before

Answer 7

im confused

Answer 8

do u know how to factor a quadratic eqn?

Answer 9

no

Answer 10

ur eqn is t^2 + 3t - 4 isnt it? when u replace x^2 by t