Factor x2 – 3x - 28
ax2 + bx + c
Identify the values that should be written to
complete the X diagram.
On the top
On the bottom: 1
On the sides:
Rewrite the expression using the numbers on the
sides of the X diagram
Use double grouping to factor the four terms.
x² – 3x – 28 = 1
Done
Intro
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