Question

Evaluate: 2a+b-c² if a=3, b=-1, c=-2. *​

Answer 1

Step-by-step explanation:

2a+b-c²

= 2*3+(-1)-(-2)²

= 6-1-4

= 1

Answer 2

Step-by-step explanation:

$2a - b - {c}^{2} = 2(3) + ( - 1) - {( - 2)}^{2} \\ = 6 - 1 - 4 \\ = 6 - 5 = 1$

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