Multiply and simplify completely: ( 2 x − 3 ) 2 4 x 2 − 12 x + 9 2 x 2 − 12 x + 9 2 x 2 − 9 4 x 2 + 9

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.

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Which of the following contains a variable?