Factorise:m^2 -mn -7m +7n
step-by-step explanation please
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Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
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Step-by-step explanation:
m^2 -mn -7m +7n
m^2-mn-mn
m^3- mn
m^2 - Ans
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