To solve the equation 12x + 12 = 1212, Martina first subtracted 12 from both sides of the equation. Theo, on the other hand, first factored 12 from both of the terms on the left side of the equation. If Martina and Theo both continue with their solutions, using the least number of steps possible, which of these is a valid argument?

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image