Answer:
Given expression has the value 69
Step-by-step explanation:
Given equation is:
[tex]=7x^2 + 2x[/tex]
Now we have to put x = 3
So the equation will become:
[tex]=7(3)^2 + 2(3)[/tex]
By simplifying:
As [tex]3^{2} = 9[/tex]
and 2*3 = 6
So the above equation will become:
[tex]=7(9 ) + 6\\= 63 + 6\\= 69[/tex]
So the value of given expression is 69.
i hope it will help you!
