Question

18×[17+(-3)=[18×7]+[18+(-3)
​

Answer 1

18 × [7-3] = 126 + [-54]        (+×- = -)

      18 × 4 = 126-54

      72 = 72

Answer 2

$18\times[17+(-3)]\neq[18\times 7]+[18+(-3)]$.

Step-by-step explanation:

The expression is:

$18\times[17+(-3)]=[18\times 7]+[18+(-3)]$

Consider the right hand side of the expression:

$[18\times 7]+[18+(-3)]=126+18-3=141$

Consider the left hand side of the expression:

$18\times[17+(-3)]=18\times [17-3]=18\times 14=252$

The right hand side of the equation is not same as the left hand side.

Thus, $18\times[17+(-3)]\neq[18\times 7]+[18+(-3)]$.