Algebrahard · Past Paper
Factorize: x^4 + 2x^2 + 9
A(x^2+2x+3)(x^2-2x+3)
B(x^2+x+3)(x^2-x+3)
C(x^2+3)^2-4x^2
DBoth a and c
✓ Correct Answer: D — Both a and c
(x^2+3)^2 - 4x^2 = (x^2+3+2x)(x^2+3-2x).
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✓ Correct Answer: D — Both a and c
(x^2+3)^2 - 4x^2 = (x^2+3+2x)(x^2+3-2x).
Share this question