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Gala2k [10]
2 years ago
10

How do u combine like terms?

Mathematics
1 answer:
cupoosta [38]2 years ago
5 0

Answer:


Step-by-step explanation:

Step 1- combine the coefficients


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Express as a trinomial (2x+8)(x-3)
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Answer:

\huge\boxed{(2x+8)(x-3)=2x^2+2x-24}

Step-by-step explanation:

\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(2x+8)(x-3)=(2x)(x)+(2x)(-3)+(8)(x)+(8)(-3)\\\\=2x^2-6x+8x-24\qquad\text{combine like terms}\\\\=2x^2+(-6x+8x)-24\\\\=2x^2+2x-24

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Which of the following is a factor of 2x^2–7x–15<br><br> 2x–3<br> x–5<br> 2x–5<br> x–3
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double bracket factorisation

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2x(x-5) + 3 (x-5)

<em><u>(</u></em><em><u>2x</u></em><em><u>+</u></em><em><u>3</u></em><em><u>)</u></em><em><u> </u></em><em><u>(</u></em><em><u>x-5</u></em><em><u>)</u></em>

<em><u>THE</u></em><em><u> </u></em><em><u>ANSWER</u></em><em><u> </u></em><em><u>IS</u></em><em><u> </u></em><em><u>X-5</u></em>

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