Write the difference 20 – (–48) as a sum. then simplify.

The solution of 20–(–48) is 68.

Solution:

To write the difference  20–(–48 ) as sum and simplify,

Multiplication of two negative sign becomes positive. When multiply a negative number by another negative number, the product becomes positive.  ⟹20 – (–48)= 20 + 48

Hence the difference 20 – (–48 ) can be written as sum  ( 20 + 48 ).

For simplification we add 20 and 48, 20 + 48 = 68.

correct answer:

a + bi