Question

How do you evaluate the expression `3x^2+y` if `x=1` and `y=-3`?

Answer 1

0

Explanation:

To evaluate substitute the values of x = 1 and y = - 3 into
the expression.

`3x^2 = 3 xx x xx x = 3 xx 1 xx 1 = 3`

so `3x^2 + y = 3 - 3 = 0`