Question

Y=2x(4+x)-2
X=3
Someone help please

Answer 1

y=2x(4+3)-2
=2x7-2
=14-2
=12

Answer 2

`x=3` and
`y=40`

Explanation:

Given:

`y=2x(4+x)-2` Equation:1

`x=3` Equation:2

Putting the value of 'x' in Equation:1 to find the value of 'y'

`y=2x(4+x)-2`

Solving the equation by putting 'x=3'

`y=2(3)(4+3)-2`

`y=6(7)-2`

`y=42-2`

`y=40`

So, the values are :
`x=3` and
`y=40`