Factorization

Hong Kong

Stage 1 - Stage 3

Find the missing values in this perfect square:

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

Easy

Less than a minute

What term must we add to complete the square on $x^2+10x$`x`2+10`x`?

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

Complete the following so that it forms a perfect square

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