Question

All of the following expressions are equivalent to 12w + 6, except:
a.-1(12w - 6)
b.(3 + 6w)2
c.6(1 + 2w)
d.-1(-12w - 6)

Answer 1

When you distribute the constants in each case, letter a. is wrong because it turns out to be -12w + 6 which $\neq$ to 12w + 6