Question

Evaluate the expression 3xy - 2x^2 for x=4 and for y = 3 helpp

Answer 1

3*4*3-2*4^2 = 36-32 = 4

hope helped 

Answer 2

Good evening my friend.

The first  thing we need to thing about is to replace each values by the number that they give for them. 

So let's start by replacing 4 every where we see x and 3 everywhere there is y

3(4)(3) - 2(4)²

36 - 2(16)

36- 32

= 4

I hope that's help :)