Question

Evaluate the following: 35 × 37

Answer 1

 Here, we will use the identity $$(x+a)(x+b)=x^2+(a+b)x+ab$$

$$35\times 37$$

$$=(30+5)(30+7)$$

$$={30}^2+(5+7)30+5\times 7$$

$$=900+360+35$$

$$=1295$$