Question

3x^2-2xy+4y^2 when x= -2 and y=3

Answer 1

The answer is 60. You just simply plug in the numbers in the place The final equation qould look like

3(-2)^2 - 2(-2)(3) +4(3)^2

Answer 2

Alright first since we know what the variables are change the problem so that the variables are now numbers to get:

3*-2^2-2*-2*3+4*3^2 and then we can go back and simplify it.

Using the order of operations rules we do the exponents FIRST making our problem:

(3*4)-(2*-2*3)+(4*9)

still following the order of operations rule we do multiplication NEXT (meaning we're doing 3*4=12,2*-2*3=3,and 4*9=36) so we have

12-3+36

12-3=9

9+36=45

Your answer is 45!

I hope this helps!