2x - 5x(x - 2) = 13x
linear or non linear

Non Linear

Explanation:

This appears to be a quadratic equation, not a linear.

Linear equations can be represented by the following:

Y=mx+b

Ax+By=C

Y-y1=m(x-x1)

This equation can't be represented as ANY of these. It is, however, able to be converted to the standard form of quadratic equations.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.