Factoring Trinomials: Using short multiplication formulas

The area of the triangle is $\frac{x^2}{2}$.

Calculate x.

$x=2$

Below is a rectangle.

x>0

The area of the rectangle is $x^2-13$.

Calculate x.

$x=3$

Look at the triangle below.

Calculate x given that x>0 .

$x=3$

The square shown below has an area of 36.

x>0

Calculate x.

$x=5$

Choose the expression that represents the area of the square below.

$x^2+2x+1$

Calculate x given that x>0 .

$x=5$

$(x+3)^2=(x-3)^2$

$x=0$