Explain |top| Instant

He divided the rectangle into a square and two smaller rectangles. He labeled the side of the square ‘x’. Then he labeled the other dimensions with numbers. 2 and 3.

He added a tiny 1x1 square to fill the gap. “But you can’t add something for nothing. So you add it to both sides. Balance. Fairness.” explain

“Here’s a garden,” he said. “The big square patch is x by x. The two little rectangular patches are 2x and 3x. And the tiny corner patch is 2 times 3, which is 6.” He divided the rectangle into a square and

Lena watched his pencil move. “The total area of the garden,” Marco continued, “is ( x^2 + 5x + 6 ). That’s not an abstract idea. That’s the dirt under your fingernails. That’s where you plant the tomatoes.” 2 and 3

She took the pencil from his hand. Slowly, she drew her own garden. Her own missing corner. She wrote: ((x + \frac{5}{2})^2 - \frac{1}{4} = 0).