Solve -2a^2+4ab-2.2

$$-2 { a }^{ 2 } +4ab-2.2$$

Differentiate w.r.t. a

$$4\left(b-a\right)$$

Steps Using Derivative Rule for Sum

The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax^{n} is nax^{n-1}.

$$2\left(-2\right)a^{2-1}+4ba^{1-1}$$

Multiply 2 times -2.

$$-4a^{2-1}+4ba^{1-1}$$

Subtract 1 from 2.

$$-4a^{1}+4ba^{1-1}$$

Subtract 1 from 1.

$$-4a^{1}+4ba^{0}$$

For any term t, t^{1}=t.

$$-4a+4ba^{0}$$

For any term t except 0, t^{0}=1.

$$-4a+4b\times 1$$

For any term t, t\times 1=t and 1t=t.

$$-4a+4b$$

Evaluate

$$-2a^{2}+4ab-2.2$$