Question

Simplify 2x 2 - y for x = 3 and y = -2. 20 14 16 10 i need help please

Answer 1

2x^2-y

Plug in the values. 

2(3)^2-(-2)

2(3)^2+2

Exponents first. 

2*9+2

18+2

20

The answer is 20. 

I hope this helps!
~kaikers