Which expression is equivalent to x⁴-12x²+36

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

What is the point slope form of a line with slope -5 that contains point (2,-1)