2 years ago

Fully Factorise 3x-12

Mathematics

1 answer:

artcher [175]2 years ago

7 0

Answer:

3(x-4)

Step-by-step explanation:

3×4=12 and 3 also goes into 3x

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Elina [12.6K]

Answer:

x=-8

Step-by-step explanation:

5x-3x=-2-14

2x=-16

x=-8

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2 years ago

(1 ÷ x- 1)+(2÷ x+2)=(3÷2) solve and check for extraneous solutions

Sliva [168]

$\frac{1}{x-1}+ \frac{2}{x+2}= \frac{3}{2}$
$\frac{1(x+2)}{(x-1)(x+2)}+ \frac{2(x-1)}{(x+2)(x-1)}= \frac{3(x-1)(x+2)}{2}$
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$\frac{3x+1}{(x-1)(x+2)}= \frac{3(x^2+x-2)}{2}$
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$\frac{3x+1}{(x^2+x-2)}= \frac{3x^2+3x-6)}{2}$
$\frac{2(3x+1)}{2(x^2+x-2)}= \frac{3x^2+3x-6)(x^2+x-2)}{2(x^2+x-2)}$
$\frac{2(3x+1)}{2(x^2+x-2)}-\frac{3x^2+3x-6)(x^2+x-2)}{2(x^2+x-2)}=0$
$\frac{2(3x+1)-3x^2+3x-6}{2(x^2+x-2)}=0$

this will be continued

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2 years ago

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jeyben [28]

Answer:

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Step-by-step explanation:

because i know i am correct.

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2 years ago

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2 years ago

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dezoksy [38]

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2 years ago

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