Jika x= 6, maka 3x²+7-12=

X = 6
3(6)² + 7 – 12
= 3(36) + 7 – 12
= 108 + 7 – 12
= 115 – 12
= 103.

X = 6
3(6^2) + 7 – 12
= 108 + 7 – 12
= 103
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