Evaluate: (-4)x \times (-1)-(-2)^2=4

Expression: $\left( -4 \right)x \times \left( -1 \right)-{\left( -2 \right)}^{2}=4$

Multiplying an even number of negative terms makes the product positive

$4x \times 1-{\left( -2 \right)}^{2}=4$

Any expression multiplied by $1$ remains the same

$4x-{\left( -2 \right)}^{2}=4$

Evaluate the power

$4x-4=4$

Move the constant to the right-hand side and change its sign

$4x=4+4$

Add the numbers

$4x=8$

Divide both sides of the equation by $4$

$x=2$