Solve 12x^2-11y^2-13x-5x^2-14y^2-9x

$$12 { x }^{ 2 } -11 { y }^{ 2 } -13x-5 { x }^{ 2 } -14 { y }^{ 2 } -9x$$

Evaluate

$$7x^{2}-22x-25y^{2}$$

Solution Steps

Combine 12x^{2} and -5x^{2} to get 7x^{2}.

$$7x^{2}-11y^{2}-13x-14y^{2}-9x$$

Combine -11y^{2} and -14y^{2} to get -25y^{2}.

$$7x^{2}-25y^{2}-13x-9x$$

Combine -13x and -9x to get -22x.

$$7x^{2}-25y^{2}-22x$$

Differentiate w.r.t. x

$$14x-22$$