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21-05-2021
Mathematics

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Evaluate 3x2 – 9 when x= -2.

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MaltitiAbdulWakil MaltitiAbdulWakil

23-05-2021

Answer:

3(-2)2-9

-12-9

-21

Step-by-step explanation:

×=-2 so -2×3=-6 which is -6×2=-12

and we have -9

soo -12-9=-21

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