Question 346188
Show exponentiation by using the caret, ^.
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Dividing by a fraction is the same as multiplying by its reciprocal.
{{{((y^2-49)/(z^2+z))/((y+7)/z)=((y^2-49)/(z^2+z))(z/(y+7))}}}
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{{{((y^2-49)/(z^2+z))/((y+7)/z)=(((y-7)(y+7))/(z(z+1)))(z/(y+7))}}}
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{{{((y^2-49)/(z^2+z))/((y+7)/z)=(((y-7)cross((y+7)))/(cross(z)(z+1)))(cross(z)/cross((y+7)))}}}
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{{{((y^2-49)/(z^2+z))/((y+7)/z)=highlight((y-7)/(z+1))}}}