Question

Factorize.
(-3a² +2a+6)
​

Answer 1

Answer:

-3×-3+2a+6

9+2a+6

11a+6

=17a is the answer

Answer 2

Answer:

5-(3a2-2a)(6-3a2+2a)

= 5 – (18a^2 – 9a^4 + 6a^3 – 12a + 6a^3 – 4a^2)

= 5 – (– 9a^4 + 6a^3 + 6a^3+ 18a^2 – 4a^2– 12a)

= 5 – (– 9a^4 + 12a^3 + 14a^2 – 12a)

= 9a^4 - 12a^3 - 14a^2 + 12a + 5

= (a+1)(3a+1)(a−1)(3a−5)

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