help me | Mathematics | Page 1

half bronze Oct 10, 2025, 9:23 AM

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What are you trying to do here?

mental stone Oct 10, 2025, 2:31 PM

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Do you really need to use this exact method ?

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Just a question because there is much easier ways to factor the same expression

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The best way is the the AC method

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9x²+6x+1=(3x+1)²

half bronze Oct 10, 2025, 2:47 PM

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mental stone The best way is the the AC method

What is that?

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And I'm still not sure what's being done here.

mental stone Oct 10, 2025, 2:53 PM

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Oh yeah let me explain

mental stone Oct 10, 2025, 2:53 PM

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half bronze And I'm still not sure what's being done here.

Sorry, I just put the solution

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Basically

half bronze Oct 10, 2025, 2:54 PM

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Also yeah, please don't show the whole solution.

mental stone Oct 10, 2025, 2:54 PM

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half bronze Also yeah, please don't show the whole solution.

Oh sorry, this is my first time doing this

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So, what you'd want to do is multiply the x² coefficient and the c term

half bronze Oct 10, 2025, 2:58 PM

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Ok?

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But why?

mental stone Oct 10, 2025, 2:58 PM

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9x²+6x+1=》x²+6x+9

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9x²+6x+1=》x²+6x+9

half bronze Oct 10, 2025, 2:58 PM

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9x^2 + 6x + 1 is already a complete square, so you can just use the square of sum formula to factor it.

mental stone Oct 10, 2025, 3:02 PM

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half bronze But why?

You are right, but I'd hardly imagine a normal school examination markscheme would allow the formula

half bronze Oct 10, 2025, 3:02 PM

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Huh?

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Why?

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It's a complete square, so you factor it as such...

mental stone Oct 10, 2025, 3:03 PM

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I never saw it on any markscheme

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Wait a sec

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That might just be because I live in England

half bronze Oct 10, 2025, 3:05 PM

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I'm not really familiar with markschemes much. Most of the tests and exams I've ever had were graded abstractly, not systematically.

mental stone Oct 10, 2025, 3:06 PM

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Here, you must stick to the method(s) of the specification of the exam board which is like a governing body for education

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The only reason I know that is due to A- level further maths I'm afraid( the sum of squares formula)

half bronze Oct 10, 2025, 3:21 PM

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Oh...

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That's kinda dumb.

mental stone Oct 10, 2025, 8:00 PM

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I know right

boreal yachtBOT Oct 11, 2025, 8:00 PM

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@shy kindle

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