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If x2+7x+12

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If x2+7x+12

Posted by Rekha Bidwaik 6 years, 7 months ago

CBSE > Class 09 > Mathematics

2 answers

Madan Pasi 6 years, 7 months ago

We shall use the splitting method. Multiply x with 12 and you will get 12 (first and last). We have to look at the constant not variable. Now see the factors of 12 in pairs and those are (6,2),(4,3) and (12,1). 4 and 3 make a pair and their addition would be 7 which is the middle number. x²+3x+4x+12 x(x+3)+ 4(x+3) (x+4)+(x+3)

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Aarti Sharma 6 years, 7 months ago

X2+4x+3x+12 X(x+4)+3(x+4) (x+4)(x+3)

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