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Algebra

Quick questions on Algebraic manipulation - WJEC GCSE Maths (Algebra)

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is sign errors with a negative outside the bracket?
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−(x−3)-(x - 3) is −x+3-x + 3, not −x−3-x - 3.
What is not factorising fully?
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Always take out the highest common factor, so 4x+84x + 8 becomes 4(x+2)4(x + 2), not 2(2x+4)2(2x + 4).

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