factorise it. x4 + x2 + 25

x4+x2+25 = x22+2×12× x2+122-122+25 =x2+122+994Here we can see that it cannot be factorized.

  • -21

why u had put x on the front of each no.

  • -10

4x +2x +25

=6x+25

  • -10

x4+5x2+5x2+25

= x2(x2+5)+5(x2+5)

=(x2+5)(x2+5)

  • -15

(x2+5)(x2+5)

  • -6
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