# Complete the Square

- Author:
- Lam Meng Hwee

- Topic:
- Square

**Here's an activity to check if you're able to complete the square!**First type in your name in the right panel, and click Ok. Adjust the values of the coefficients a, b, c, as well as the +/- signs. Once you are sure that your completed-square answer is correct, click [Confirm]. You can toggle the levels: 1, 2, 3. As you answer questions correctly for each of the 3 levels, the white square on the right panel will start to fill up. Aim to "complete the square"!

## Refeence Guide

**If you need help for the steps for completing the square, here are some examples: [Example 1(a)]**Complete the square for

*x*

^{2}+ 8

*x*.

**[Example 1(b)]**Complete the square for

*x*

^{2}- 5

*x*.

**[Example 2(a)]**Complete the square for 2x

^{2 }+ 8x.

**[Example 2(b)]**Complete the square for -x

^{2 }+ 10x.

**[Example 3(a)]**Complete the square for 5x

^{2}- 20x + 7.

**[Example 3(b)]**Complete the square for -2x

^{2}- x +1.