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if 2 is a zero of the polynomial p (x) =2x^2 - 3x + 7a find value of a

Posted by Yagneswar Gorriparthi 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years, 4 months ago

Given,

p(x) = 2x²-3x+7a

2 is the zero of the polynomial

So, substitution

p(2) = 0

p(2) = 2(2)² - 3x + 7a

0 = 2(4)-3(2)+7a

0 = 8-6+7a

0 = 2+7a

-2 = 7a

-2/7 = a

The value of a is -2/7

1Thank You

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