Ithink of a number multiply it by 2, subtract 5 and multiply the result by 2 really stuck on it m8s

Find the value of a. the diagram is not to scale. a quadrilateral is drawn. the upper and lower sides are parallel. the interior angle in the upper left corner is labeled a degrees. the angle in the upper right corner is labeled 113 degrees. the angle in the lower right corner is labeled b degrees. the angle in the lower left corner is labeled 36 degrees. a. 36 b. 144 c. 54 d. 126

Simply 8x squared + 5(7x squared- x) - 2x =

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much