Which expression is not equivalent to the other expressions? a-6(2x - 4) b-(12x - 6) + 18 c-3(4x - 3) + 15 d-4(3x + 6)

D-4(3x + 6)

Step-by-step explanation:

A-   -6(2x - 4)    Distribute  = -12x +24

B-    -(12x - 6) + 18  Distribute -12x+6+18 Combine like terms  -12x +24

C-   -3(4x - 3) + 15    Distribute   -12x+9+15   Combine like terms   -12x +24

D-    -4(3x + 6)  Distribute   -12x-24  

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

570, the answer is 570, hope it