Respuesta :

choixongdong
If x = 3 calculate the value of x^2+x
3^2 +3
= 9 + 3
= 12
AJGreen
The X just represents what the value will be in the equation, in this case 3, and when you have the letter besides a number, you just multiply them together:
x2+x = (2*3)+3 = 9

The answer is 9,
Hope this helps! :)

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