Solve 31.8^2-2*31.8*21.8+21.8^2

$$31.8 ^ { 2 } - 2 \cdot 31.8 \cdot 21.8 + 21.8 ^ { 2 }$$

Evaluate

$$100$$

Solution Steps

Calculate 31.8 to the power of 2 and get 1011.24.

$$1011.24-2\times 31.8\times 21.8+21.8^{2}$$

Multiply 2 and 31.8 to get 63.6.

$$1011.24-63.6\times 21.8+21.8^{2}$$

Multiply 63.6 and 21.8 to get 1386.48.

$$1011.24-1386.48+21.8^{2}$$

Subtract 1386.48 from 1011.24 to get -375.24.

$$-375.24+21.8^{2}$$

Calculate 21.8 to the power of 2 and get 475.24.

$$-375.24+475.24$$

Add -375.24 and 475.24 to get 100.

$$100$$

Factor

$$2^{2}\times 5^{2}$$