Solve [0.4^2-4*-0.22*(12.8-119)]^1/2

$$[ 0.4 ^ { 2 } - 4 * - 0.22 * ( 12.8 - 119 ) ] ^ { 1 / 2 }$$

Evaluate (complex solution)

$$\frac{i\times 7\sqrt{1190}}{25}\approx 9.658985454i$$

Solution Steps

Calculate 0.4 to the power of 2 and get 0.16.

$$\left(0.16-4\left(-0.22\right)\left(12.8-119\right)\right)^{\frac{1}{2}}$$

Multiply 4 and -0.22 to get -0.88.

$$\left(0.16-\left(-0.88\left(12.8-119\right)\right)\right)^{\frac{1}{2}}$$

Subtract 119 from 12.8 to get -106.2.

$$\left(0.16-\left(-0.88\left(-106.2\right)\right)\right)^{\frac{1}{2}}$$

Multiply -0.88 and -106.2 to get 93.456.

$$\left(0.16-93.456\right)^{\frac{1}{2}}$$

Subtract 93.456 from 0.16 to get -93.296.

$$\left(-93.296\right)^{\frac{1}{2}}$$

Real Part (complex solution)

$$0$$

Evaluate

$$\text{Indeterminate}$$