Question

What is the value of 7x 2squared + 2x when x = 3?

Answer 1

Given expression has the value 69

Explanation:

Given equation is:

`=7x^2 + 2x`

Now we have to put x = 3

So the equation will become:

`=7(3)^2 + 2(3)`

By simplifying:

As
`3^(2) = 9`

and 2*3 = 6

So the above equation will become:

`=7(9 ) + 6\\= 63 + 6\\= 69`

So the value of given expression is 69.

i hope it will help you!