Question

Which two expressions are not equivalent expressions?2*7*4= (2*7)*48+3+7= 8+ (3+7)3 (12*2) = (3*12) *2(15*20)-10 = 15 *(20-10)

Answer 1

Looking through the expression, the expressions that are not equivalent (equal):

`\begin{gathered} (15*20)-10=15*(20-10) \\ 300-10=15*10 \\ 290\\e150 \\ So\text{ they are not equivalent, and that will be the correct answer.} \end{gathered}`