Problem:
Evaluate the equation:
[tex]\tt{y = 2 {x}^{2} } - 2x + 7 \: ,when \: x \: = \: - 3[/tex]
Let's try!
[tex]\quad \quad \quad \quad \tt{y = 2 {x}^{2} } - 2x + 7[/tex]
[tex]\quad \quad \quad \quad \tt{y = 2 {( - 3)}^{2} } - 2( - 3)+ 7[/tex]
[tex]\quad \quad \quad \quad \tt{y = 2(9) +6 + 7}[/tex]
[tex]\quad \quad \quad \quad \tt{y = 18 +6 + 7}[/tex]
[tex]\quad \quad \quad \quad \tt{y = 24 + 7}[/tex]
[tex]\quad \quad \quad \quad \tt{y = 31}[/tex]
Hence, the answer is:
[tex]\quad \quad \quad \quad \boxed{\tt{\color{green}y = 31}}[/tex]
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#LetsStudy
