Solve left(12.5^2-5^2right)^1=x

$${ \left(1 { 2.5 }^{ 2 } - { 5 }^{ 2 } \right) }^{ 1 } =x$$

Solve for x

$$x=-18.75$$

Steps for Solving Linear Equation

Calculate 2.5 to the power of 2 and get 6.25.

$$\left(1\times 6.25-5^{2}\right)^{1}=x$$

Multiply 1 and 6.25 to get 6.25.

$$\left(6.25-5^{2}\right)^{1}=x$$

Calculate 5 to the power of 2 and get 25.

$$\left(6.25-25\right)^{1}=x$$

Subtract 25 from 6.25 to get -18.75.

$$\left(-18.75\right)^{1}=x$$

Calculate -18.75 to the power of 1 and get -18.75.

$$-18.75=x$$

Swap sides so that all variable terms are on the left hand side.

$$x=-18.75$$