Q5 of 53 Page 166

Factorise the following:

ax4 – ax12

⇒ ax4 – ax12


⇒ ax4(1 – x8)


⇒ ax4{1 – (x4)2}


⇒ ax4(1 + x4)(1 – x4)


⇒ ax4(1 + x4){1 – (x2)2}


⇒ ax4 (1 + x4)(1 + x2)(1 - x2)


⇒ ax4 (1 + x4)(1 + x2)(1 + x)(1 – x)


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