21×21+43=
To solve 21×21+43, follow these steps:
- Step 1: Multiply 21×21 by using the multiplication of fractions formula:
21×21=2×21×1=41.
- Step 2: Add 41 to 43.
Since 41 and 43 already have the same denominator, the addition can be done directly:
41+43=41+3=44=1.
Therefore, the correct solution to the expression is 1.