Question

if 2 Is a zero of the polynomial p(x)=2x²-3x+7a find the value of a. no​

Answer 1

Answer:

yep

Explanation:

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

-2/7 = a

The value of a is -2/7

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Answer 2

Answer:

$\huge{\fcolorbox{brown}{lightblue}{Answer:}}$

Given that 2 is a zero of

p(x) = 2x²-3x±7a

(i. e) p(2) = 0

⟹2(2)²-3(2) ± 7a = 0

⟹8-6±7a = 0

⟹2±7a = 0

⟹7a = -2

⟹a=-2/7