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3 years ago

Factor 18bc + 9ab + 3cb completely.

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

6 0

Answer:

$3b\left(7c+3a\right)$

Step-by-step explanation:

$18bc+9ab+3cb$

$=6\cdot \:3bc+3\cdot \:3ba+3bc$

$=3b\left(6c+3a+c\right)$

$=3b\left(7c+3a\right)$

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Step-by-step explanation:

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2 years ago

1)if the equations 2x +y=7 and x-y= 2 are solved simultaneously, then y =

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Answer:

Step-by-step explanation:

1) 2x + y =7 -------------(I)

x - y = 2 -----------(II)

2x + y = 7

<u> x - y = 2 </u> {Now add both the equations. 'y will be cancelled}

3x = 9

x = 9/3

x = 3

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