Timothy evaluated the expression using x = 3 and y = -4.
122
3x'y
Analyze Timothy's steps. Is he correct? If not, why not?
Yes, he is correct
No, he needed to add the exponents when he
simplified the powers of the same base.
No, he needed to multiply 3 and -1 instead of
creating a positive exponent in a fraction,
No, his value of (-4) should be positive because
an even exponent indicates a positive value.
2 ( )3-(-4)
3.5 (31)-432
1 1
4.(3)(3)(-16)
16
9