Answer: this is not equivalent 81-12+7=11
Step-by-step explanation: this is not equal because 81-12 is 69 and 69+7 will give you 76 witch is not equal to 11
Answer:
[see below]
Step-by-step explanation:
[tex]3x^2-4x+7=11\\\\3(3)^2-4(3)+7=11\\\\3*3^2-12+7=11\\\\3^3-12+7=11\\\\27-12+7=11\\\\27-5=11\\\\\boxed{22\neq 11}[/tex]
3 would not be a solution to the equation.
Hope this helps!