Solve =2*10^5+1/21000*12^2-1/21000*20-1000*0.812

$$= 2 \times 10 ^ { 5 } + \frac { 1 } { 2 } 1000 \times 12 ^ { 2 } - \frac { 1 } { 2 } 1000 \times 20 - 1000 \times 0.812$$

Evaluate

$$261188$$

Solution Steps

Calculate 10 to the power of 5 and get 100000.

$$2\times 100000+\frac{1}{2}\times 1000\times 12^{2}-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Multiply 2 and 100000 to get 200000.

$$200000+\frac{1}{2}\times 1000\times 12^{2}-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Multiply \frac{1}{2} and 1000 to get \frac{1000}{2}.

$$200000+\frac{1000}{2}\times 12^{2}-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Divide 1000 by 2 to get 500.

$$200000+500\times 12^{2}-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Calculate 12 to the power of 2 and get 144.

$$200000+500\times 144-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Multiply 500 and 144 to get 72000.

$$200000+72000-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Add 200000 and 72000 to get 272000.

$$272000-\frac{1}{2}\times 1000\times 20-1000\times 0.812$$

Multiply \frac{1}{2} and 1000 to get \frac{1000}{2}.

$$272000-\frac{1000}{2}\times 20-1000\times 0.812$$

Divide 1000 by 2 to get 500.

$$272000-500\times 20-1000\times 0.812$$

Multiply 500 and 20 to get 10000.

$$272000-10000-1000\times 0.812$$

Subtract 10000 from 272000 to get 262000.

$$262000-1000\times 0.812$$

Multiply 1000 and 0.812 to get 812.

$$262000-812$$

Subtract 812 from 262000 to get 261188.

$$261188$$

Factor

$$17\times 23\times 167\times 2^{2}$$