Asked by Jason

1. 12 + 8a + 4a^2

2. Factorise -5x^2 + 27x - 10

Please show me full working out. Thank you!
Answered by Damon
4 (a^2 + 2 a + 3)

-1(5x^2-27x+10)

-1(5x-2)(x-5)

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