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7x2-12x+18=0

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7x2-12x+18=0

Posted by Prajwal More 4 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 4 years, 11 months ago

7x² - 12x + 18

Find the sum of the roots:

Sum of the roots = α + β

α + β = - b/a

α + β = - (-12 ) / 7 = 12/7

Find the product of the roots:

Product of the roots = αβ

αβ = c/a

αβ = 18/7

Find the ratio:

α + β : αβ = 12/7 : 18/7

Multiply by 7:

α + β : αβ = 12 : 18

Divide by 6:

α + β : αβ = 2 : 3

0Thank You

Maxtern .Op 4 years, 11 months ago

14-12x+18 => 32=12x => x=32/12 => x=8/3

1Thank You

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CBSE > Class 10 > Mathematics