NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 1: Number System - Problems and Solutions

Question 125

125. If * is defined for integers \(a,b\) by

\(a*b=a\times b + (a\times a + b\times b)\), find:

(i) \((−3)* (−5)\)

(ii) \((−6)*2\)