NZ Level 6 (NZC) Level 1 (NCEA)
Complete the square

## Interactive practice questions

Find the missing values in this perfect square:

$x^2+4x+\editable{}=\left(x+\editable{}\right)^2$x2+4x+=(x+)2

Easy
Less than a minute
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What term must we add to complete the square on $x^2+10x$x2+10x?

Determine the value of $c$c, the constant that should be added to $x^2-2x$x22x to make it a perfect square expression.

Complete the following so that it forms a perfect square

### Outcomes

#### NA6-5

Form and solve linear equations and inequations, quadratic and simple exponential equations, and simultaneous equations with two unknowns

#### 91027

Apply algebraic procedures in solving problems