Please help Which expression does NOT have a Greatest Common Factor?

2x^2 +8x + 4
9x^4 + 2x^2 + 7x
9x^2 – 16
3x^2 – 12

Yo y do yall have 2 stars that means yall wrong bro

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?