Difference of squares
Grade 9
What this lesson shows
Factor x squared minus 16. Something is missing — there is no x term at all. That absence is the clue.
Try it yourself
Real questions from this lesson's worksheets — answers below each one.
- Factor x² - 1.
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(x + 1)(x - 1) - Factor x² - 4.
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(x + 2)(x - 2) - Factor x² - 9.
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(x + 3)(x - 3) - Factor x² - 16.
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(x + 4)(x - 4)
Practise this every day
Eduyro gives your child a short daily worksheet on exactly this skill, and moves them on only once they have it. Watch the lesson, then build the fluency.
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