Solve =(10-1)(12)^2/(0.4)^2

$$= \frac { ( 10 - 1 ) ( 12 ) ^ { 2 } } { ( 0.4 ) ^ { 2 } }$$

Evaluate

$$8100$$

Solution Steps

Subtract 1 from 10 to get 9.

$$\frac{9\times 12^{2}}{0.4^{2}}$$

Calculate 12 to the power of 2 and get 144.

$$\frac{9\times 144}{0.4^{2}}$$

Multiply 9 and 144 to get 1296.

$$\frac{1296}{0.4^{2}}$$

Calculate 0.4 to the power of 2 and get 0.16.

$$\frac{1296}{0.16}$$

Expand \frac{1296}{0.16} by multiplying both numerator and the denominator by 100.

$$\frac{129600}{16}$$

Divide 129600 by 16 to get 8100.

$$8100$$

Factor

$$2^{2}\times 3^{4}\times 5^{2}$$