Question
Factorise:
a2x2 + (ax2 + 1)x + a
a2x2 + (ax2 + 1)x + a
✓
Answer
a2x2 + (ax2 + 1)x + a
= a2x2 + ax3 + x + a
= ax2(a + x) + 1(x + a)
= (ax2 + 1)(a + x)
= a2x2 + ax3 + x + a
= ax2(a + x) + 1(x + a)
= (ax2 + 1)(a + x)
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