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Evaluate the expression below when x = 3. 5x2 - 12 x + 3

User MarcL
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2 Answers

3 votes
-26 because 12 times 3= 36 and 3.5 times 2=7. 7-36=-29+3=-26
User Marzia
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4 votes


\huge\text{Hey there!}


\huge\boxed{\mathsf{5x^2 - 12 x + 3}}\\\huge\boxed{\mathsf{= 5(3)^2- 12(3)+ 3}}\\\\\\\huge\boxed{\mathsf{3^2}}\\\huge\boxed{\mathsf{=3*3}}\\\huge\boxed{\mathsf{= \bf 9}}\\\\\\\huge\boxed{\mathsf{5(9) - 12(3) + 3}}\\\huge\boxed{\mathsf{= 45 - 36 +3}}\\\huge\boxed{\mathsf{= 9 + 3}}\\\huge\boxed{\mathsf{= 12}}\\\\\\\huge\boxed{Therefore, your\ answer is: \textsf{12}}\huge\checkmark


\huge\text{Good luck on your assignment \& enjoy your day!}

~
\huge\boxed{\frak{Amphitrite1040:)}}

User Woodford
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