Question

Simplify and find its value 6a (a2 – 2a) + 3a, when, a = − 1.​

Answer 1

6a ( a² - 2a ) + 3a

At a = - 1

6(-1) [ ( - 1 ) ² - 2 x - 1 ) ] + 3 x - 1

- 6 ( 1 + 2 ) - 3

- 6 x 3 - 3

- 18 - 3

Answer ➡ - 21

Answer 2

Step-by-step explanation:

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